Wroclaw in 3 days

Ostrów Tumski (Cathedral Island — the island in the northern branch of the Oder River that is the historical nucleus of Wrocław and one of the oldest continuously inhabited sites in Poland): the history (Ostrów Tumski (the "Cathedral Island" — "Ostrów" means "island" in archaic Polish, "Tumski" derives from "Tum" meaning cathedral chapter) was the seat of the Piast dynasty court in the 10th century: the Piast-era fortified settlement (the "gród" — the earth and timber fortification of the earliest Polish state period (c.990-1000 CE)) was the administrative centre of the early Polish state under Duke Bolesław I the Brave; the Piast court moved to the west bank (the current Rynek area) in the 13th century, leaving Ostrów Tumski as the ecclesiastical centre); the Cathedral of St. John the Baptist (the Archikatedra Świętego Jana Chrzciciela — the Gothic cathedral on Ostrów Tumski: the oldest church on the site was built c.1000 CE (one of the oldest cathedral sites in Poland); the current Gothic structure was built primarily 14th-15th centuries (the twin towers, 1419-1447); the cathedral was almost completely destroyed in 1945 during the Siege of Breslau (the final German defence of Breslau (Wrocław) in World War II — the city held out until May 6, 1945, two days before the German surrender — the siege reduced 70% of the buildings to ruins); the cathedral was rebuilt 1946-1951 exactly replicating the pre-war Gothic form); the nocturnal gas lighting (Ostrów Tumski retains the pre-electric era gas street lamps (the 102 gas lanterns on Cathedral Island are the only manually-lit street lamps still in operation in Poland — a lamplighter (latarnik) lights each of the 102 lamps at dusk every evening by hand).

University of Wrocław (Universytet Wrocławski — the Leopold Foundation university (the "Leopoldina") founded by the Habsburg Emperor Leopold I in 1702; the most architecturally magnificent university building in Poland): the history (the University of Wrocław was founded as a Jesuit university in 1702 by Emperor Leopold I (1640-1705) — the "Leopoldina" name commemorates the imperial founder; the Jesuit university was the most important institution of Counter-Reformation education in Silesia; the Jesuits built the Baroque university complex on the Oder River bank between 1728-1742 — the finest Baroque ensemble in Wrocław); the Aula Leopoldina (the ceremonial hall of the Wrocław University — the most opulent Baroque interior in Silesia and one of the finest in Central Europe: the 37 m × 15 m × 17 m hall (completed 1732) designed by the Viennese Baroque architect Christoph Tausch; the ceiling fresco (the trompe-l'oeil ceiling painting by Johann Christoph Handke (1739) depicting the "Glorification of Wisdom and Science" — a trompe-l'oeil (illusionistic) architectural painted ceiling extending the apparent height and volume of the hall; the painted columns, the false balconies with painted figures, the painted architectural frames (all flat paint on a curved surface, appearing three-dimensional from the hall floor)); the gilt wooden carving (the Aula Leopoldina wooden gallery railings, the carved wooden figures representing the personifications of the Sciences and the Arts, the gilded cartouches); the Mathematical Tower (the 55-metre clock tower of the University building — the most important landmark on the Oder River bank of central Wrocław).

Panorama Racławicka (the Racławice Panorama — the 360° panoramic painting of the Battle of Racławice (April 4, 1794) displayed in a purpose-built circular rotunda in the Museum of the Panorama of Racławice on Purkyniego Street, 1 km east of the Rynek): the Battle of Racławice (the battle of April 4, 1794 during the Kościuszko Uprising (the 1794 Polish national insurrection against the Third Partition of Poland by Russia, Prussia and Austria in 1795 (which effectively erased Poland from the map of Europe for 123 years): the battle near the village of Racławice in central Poland where the Polish insurrectionary forces under General Tadeusz Kościuszko (the Polish-American general who had fought in the American Revolutionary War and been awarded the rank of Brigadier General by the Continental Congress) defeated the superior Russian Imperial forces using the famous "scythe-men" (the kosynierzy — the peasant infantry armed with war scythes converted from agricultural blades by removing the blade from the snath and fixing it in line with the pole): the kosynierzy captured the Russian cannon that turned the battle — the most celebrated tactical achievement of the Kościuszko Uprising); the panorama painting (created 1893-1894 in Lwów (now Lviv, Ukraine) by the painters Jan Styka and Wojciech Kossak with a team of 7 additional painters; the painting is 15 m × 120 m (circumference), painted on a single continuous canvas; the diorama (the three-dimensional foreground elements (the painted plaster terrain, the actual soil, the replica weapons and equipment) that blend seamlessly with the lower edge of the canvas, creating the illusion of standing in the battle); the Wrocław location (the panorama was displayed in Lwów until 1944 when the advance of the Soviet front prompted the evacuation of the painting to Wrocław (then German Breslau) rolled on a 7-metre wooden drum; the painting was finally displayed in the current purpose-built rotunda in 1985).

Szczytnicki Park and the Japanese Garden of Wrocław (the historic park complex adjacent to the Centennial Hall in the northeast of the Wrocław city): the Japanese Garden (the Japanese Garden at Szczytnicki Park — one of the oldest Japanese gardens in Poland (established 1909-1913 for the "Jahrhundertausstellung" (the Centennial Exhibition of 1913) — the major German exhibition celebrating the 100th anniversary of the Battle of Leipzig (1813), in which the Prussian forces defeated Napoleon; the Japanese garden was designed by the Japanese landscape garden architect Mankichi Arai with the cooperation of the German garden architect Georg Bela Pniower): the garden (the Japanese bridge (the red lacquered wooden arched bridge over the pond — the most photographed single element in the Szczytnicki Park), the tea house (the original Japanese tea house structure (rebuilt after World War II damage) beside the pond), the stone lanterns, the maple trees (acer palmatum — the Japanese maples turning red and orange in October, the most photogenic season in the Wrocław Japanese Garden), the koi pond; the Szczytnicki Park (the largest park in Wrocław; 100 hectares of mixed deciduous forest, meadows and historic buildings (the Neo-Romanesque wooden church (the 1913 wooden St. John Nepomucene church — the most intact surviving element of the 1913 Centennial Exhibition site)): the park walk connecting the Japanese Garden to the Centennial Hall is the most pleasant 30-minute urban walk in Wrocław.

Centennial Hall (Hala Stulecia / Hala Ludowa — the "Peoples Hall"; UNESCO World Heritage Site (2006); the largest reinforced concrete dome in the world at the time of construction (1911-1913); the most important Modernist building in Poland): the building (the Centennial Hall was designed by the Wrocław city architect Max Berg (1870-1947) and completed in 1913 for the Jahrhundertausstellung (the Centennial Exhibition of 1913); the design (the 65-metre-diameter reinforced concrete dome (the largest reinforced concrete dome in the world in 1913, exceeding the Pantheon in Rome (43.3 m) and the Florence Cathedral dome (44 m) in clear span by a radical margin; the 4 semi-circular apses extending from the main rotunda (creating the Greek cross plan when viewed from above); the structural principle (the dome uses 32 reinforced concrete arched ribs radiating from the central compression ring, each rib 65 m long from base to apex; the concrete mix (the maximum aggregate size was 50 mm to enable the thin-shell concrete form; the dome shell is only 50-70 cm thick at the ribs and 30-40 cm between the ribs — an audacious structural design for 1913 concrete technology)); the UNESCO inscription (the Centennial Hall was inscribed on the UNESCO World Heritage List in 2006 under the criterion of representing "an outstanding example of a new reinforced concrete architecture" and "a key development in reinforced concrete construction as the largest reinforced concrete dome in the world at that time"); the interior (the main hall: capacity 10,000 seated or 20,000 standing; the Pergola (the 86-metre long colonnaded walkway adjacent to the Centennial Hall, built 1913 — the most elegant Classical element of the 1913 exhibition complex, restored 1997)).

White Stork Synagogue and the Wrocław Jewish Quarter (the history of the Jewish community of Breslau/Wrocław — the third-largest Jewish community in the German Empire before 1933): the history (the Jewish community of Breslau (Wrocław) was one of the most important in Germany: by 1933 (before the Nazi period) the Breslau Jewish community had approximately 20,000 members (3% of the city population), making it the third-largest Jewish community in Germany after Berlin and Frankfurt; the most important Breslau Jews (the founder of Conservative Judaism and the Breslau Rabbinical Seminary: Zacharias Frankel (1801-1875) — the "positive-historical" school of Judaism that became the foundational tradition of the Conservative Judaism movement; the Breslau Rabbinical Seminary (1854-1938) was the first scientific rabbinical seminary in Germany and the most important Jewish religious educational institution in Central Europe in the 19th century); the Holocaust (the Breslau Jewish community was systematically destroyed by the Nazi regime: the Kristallnacht pogrom of November 9-10, 1938 (the "Night of Broken Glass") — the New Synagogue (the largest synagogue in Germany, built 1872, capacity 2,000) was burned to the ground on November 9, 1938; the Breslau Jews were deported to the death camps 1941-1944; virtually no Breslau Jews survived the Holocaust)); the White Stork Synagogue (the Synagoga pod Białym Bocianem — the "White Stork Synagogue" (named for the White Stork Inn that previously occupied the site): built 1827-1829 in the Neo-Classical style; the most important surviving Jewish building in Wrocław (the New Synagogue was burned; the White Stork Synagogue survived); restored and reopened as a cultural centre and functioning synagogue since 2010).

Neon Side Gallery and the Communist-era Wrocław (the heritage of the Polish People's Republic period (1945-1989) in Wrocław): the Neon Side Gallery (the outdoor neon sign museum on Świdnicka Street in the underpass near the main railway station — the collection of original Polish communist-era neon signs (1950s-1990s): the Polish neon (the "neon" — the Polish word for the illuminated sign using neon gas tubes — was the most visible element of Polish communist-era commercial design; the Polish communist government commissioned thousands of neon signs for shops, restaurants, cinemas and hotels across Poland in the 1950s-1970s as part of the "socialist optimism" aesthetic programme (the neon signs were intended to demonstrate that communist Poland could produce attractive consumer culture); the Polish neon designers (Józef Mroszczak, Stanisław Lis, Jan Mucharski) developed a distinctive visual language that combined the Soviet social-realist aesthetic with Art Deco lettering and naturalistic motifs (the animals, the fruits, the abstract geometric forms) unique to Polish graphic design); the Neon Side Gallery collection (the 20+ original rescued neon signs displayed in the underpass: the most famous signs include the "Bar Mleczny" (the milk bar neon — the milk bars were the communist-era cheap canteen system where workers ate subsidised meals), the "Jubilat" (the department store neon), the "Różany Ogród" (the "Rose Garden" hotel neon with the pink rose in neon glass tubes)); the Communist-era Wrocław architecture (the "Old Town" rebuilt 1945-1960: the Socialist Realist reconstruction of the Rynek (many buildings rebuilt in the 1950s on the Gothic/Baroque footprint but using the Socialist Realist style with the classicising decoration).

Wrocław Oder River islands walk (the network of 12 islands and 112 bridges on the Oder River as it flows through central Wrocław): the bridge geography (the 112 bridges of Wrocław make the city the most bridge-dense major urban area in Central Europe (more bridges than Venice, which has 431 bridges for a 414 km² historic centre vs. Wrocław's 112 bridges for the more compact central area crossing the Oder branches); the bridge types (the Wrocław bridges range from the 12th-century stone arch bridge fragments visible in the Ostrów Tumski area to the most recent 21st-century pedestrian bridges; the most important historic bridges: the Grunwaldzki Bridge (1908-1910 — the most elegant suspension bridge in Wrocław, designed by the city engineer Richard Plüddemann: 112 m main span, 2 × 46-metre approach spans; the steel chain suspension design visible from both shores; the bridge carries tramway (tram) and pedestrian traffic (one of the few tram suspension bridges in Europe)); the Tumski Bridge (the Fußgängerbrücke — the pedestrian bridge connecting Ostrów Tumski to the south bank: the "Love Lock Bridge" of Wrocław (the metal railings covered with padlocks placed by couples)); the islands walk (the most pleasant walk in central Wrocław: the circuit of the Oder islands (Ostrów Tumski, Wyspa Piasek (Sand Island — the island between Ostrów Tumski and the south bank, home to the Church of the Blessed Virgin Mary (the "Sand Church" — the 14th-15th century Gothic church on Wyspa Piasek; the most picturesque Gothic church setting in Wrocław: surrounded by the Oder branches on all sides), the Bielańska, the Słodowa (the student island with the summertime outdoor bar complex))) connecting the city's most historic areas.