Washington D.C. — 3-Day Guide

The planned capital of the United States (L'Enfant's 1791 baroque grid on the Potomac tidal flats) where the Declaration of Independence, the Constitution, the Bill of Rights and the Gettysburg Address are displayed in the same National Archives Rotunda where the Magna Carta occasionally joins them, and where the 19 free Smithsonian museums on the 2-mile National Mall contain the Wright Brothers' Flyer, the Apollo 11 command module Columbia, the 45.52-carat Hope Diamond, the Enola Gay bomber and 154 million other objects — the most concentrated collection of national heritage anywhere, all free to enter.

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📋 General guide ⭐ Highlights

The Lincoln Memorial's Granite Circle Engraved "I Have a Dream" at the Spot Where Dr. King Stood to Address 250,000 People on August 28, 1963 — and the Vietnam Veterans Memorial's Black Granite Wall Where 58,318 Names Appear in Chronological Order of Death, the Visitor's Face Reflected Against the Names in the Polished Surface

The Apollo 11 Command Module Columbia (the Scorched Cone That Carried Armstrong, Aldrin and Collins to the Moon and Back, Now Touchable Moon Rock Beside It) and the Wright Brothers' 1903 Flyer (59 Seconds, 260 Metres, the First Powered Flight in History) Both Free to See in the Most Visited Museum in the United States

The National Archives Rotunda Where the Declaration of Independence (July 4, 1776, Jefferson's Handwriting with Adams' and Franklin's Corrections), the Constitution (September 17, 1787) and the Bill of Rights (December 15, 1791) Are Displayed in Nitrogen-Filled Bulletproof Cases Lowered Each Night Into a Vault 6 Metres Underground

📋 General 3-day guide ⭐ Highlights

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Language	English (the primary language of all government, tourism and commerce in Washington D.C.; Spanish widely spoken (significant Hispanic/Latino community, approximately 11% of city population); Amharic and other Ethiopian languages (the largest Ethiopian diaspora community in North America); all Smithsonian museums have English-language audio guides; the most important monument inscriptions (the Lincoln Memorial, the Vietnam Veterans Memorial) are in English only; French and Spanish audio guides available at select Smithsonian museums; the Capitol Visitor Center provides guided tours in English)
Currency	US Dollar (USD; €1 = approximately $1.08); all Smithsonian museums are free (the most important tourist fact in Washington D.C.): all 19 Smithsonian museums including the National Air and Space Museum, Natural History, American History, Portrait Gallery, African American History and Culture have no admission charge; other key sites free: all memorials (Lincoln Memorial, Vietnam Wall, WWII Memorial, Korean War Memorial, Jefferson Memorial, Martin Luther King Jr. Memorial), the Capitol Visitor Center (book in advance through your congressional representative's office or congressionally reserved tours), the National Archives; the U.S. Holocaust Memorial Museum: free but timed entry recommended; the White House tours (free but require advance request through your congressional representative 21-90 days in advance); dining ($15-25 lunch, $30-60 dinner); Metro fare $2-6; hotel $150-350/night
Transport	Washington Dulles International Airport (IAD — 45 km west of the Mall; the Silver Line Metro from Dulles to central DC: 50 min; $5-7); Reagan National Airport (DCA — 5 km south of the Mall, across the Potomac in Virginia; the Yellow and Blue Metro lines to the Mall: 10-15 min; $2-3; the most convenient airport for the DC Mall); Baltimore/Washington Thurgood Marshall Airport (BWI — 50 km northeast; MARC commuter train or shuttle bus to BWI Amtrak station then Amtrak to Union Station; 45 min); Metro (the Washington DC subway — 6 lines; SmarTrip card for the best fare; the most efficient way to reach all Smithsonian museums and memorials); the Mall walk (all Smithsonian museums are within walking distance of each other on the Mall — a 3 km corridor from the Lincoln Memorial to the Capitol); Citibike (the Washington DC bike share system)
Best time	Mar–May (the Cherry Blossom season (the Japanese cherry blossom trees (Prunus × yedoensis) around the Tidal Basin — the gift of 3,020 cherry trees from Tokyo to Washington D.C. in 1912 by Mayor Yukio Ozaki; the 2-week peak bloom period (mid-March to mid-April — dates vary by year, the National Park Service publishes the "peak bloom" prediction 7-10 days in advance): the most visited event in Washington D.C., with 1.5 million visitors to the Tidal Basin during peak bloom; Sep–Oct (the fall foliage, the lower tourist crowds, the comfortable temperatures (15-22°C); the quietest time to visit the most popular museums without advance timed tickets); avoid Jul–Aug (the Washington D.C. summer is the least pleasant season: extreme heat (32-38°C) and humidity; the city was literally built on a tidal swamp (the "Federal City" was constructed on the Potomac tidal flats and marshes), hence the extreme summer humidity
Getting in	By plane (Reagan National (DCA) — the most convenient airport (5 km south; Metro Yellow/Blue 15 min); Dulles (IAD) — larger international hub (45 km west; Silver Line Metro 50 min; $5-7)); by Amtrak (Washington Union Station (the 1907 Beaux-Arts train station on Massachusetts Avenue NE — the most architecturally magnificent station in the United States; the Amtrak Acela (the high-speed train from New York Penn Station to Washington Union Station: 2h45 non-stop at $75-200; from Boston South Station: 6h45); the Northeast Regional train (New York to Washington: 3h30; $30-80)); by car (I-95 from New York (370 km south; 4-6 hours in traffic); the Beltway (I-495) surrounding the city; parking ($25-40/day in the Mall area: use the Metro from suburban parking instead)
Tipping	18-20% at restaurants (the standard tipping norm in Washington D.C. is higher than the US average (the high cost of living for service staff in the federal capital); many restaurant bills now include the suggested gratuity on the receipt: 18%, 20%, 22% — select or enter a custom amount; hotel housekeeping $3-5/day (place in an envelope marked "Housekeeping"); taxi and rideshare (Uber/Lyft) 15-20% (in-app tipping); museum guides (the Smithsonian volunteer guides (the "Smithsonian Associates"): no tip expected (volunteer role); the Capitol Visitor Center guided tours (free, government-operated): no tip; private tour guides: $10-20 per person for a half-day tour)
Safety	Very safe in the tourist areas (the Mall corridor, Georgetown, Penn Quarter, Capitol Hill) — the Smithsonian museums and memorials are some of the safest public spaces in the United States (constant NPS Ranger and security presence); be aware: the D.C. neighbourhood geography (the tourist areas of NW D.C. are safe; the eastern neighbourhoods (Anacostia (SE), parts of NE D.C.) have higher crime rates — avoid these areas as a tourist; the Metro (generally safe during day hours; the last Metro train is at midnight (2 AM on weekends) — pre-arrange rideshare after midnight); the January 6, 2021 attack on the Capitol increased security significantly around the Capitol Building and the surrounding Hill neighbourhood: visible security presence, vehicle barriers, and metal detector entry for public tours
Budget tips	All 19 Smithsonian museums free; all National Mall memorials free; Lincoln Memorial, Washington Monument exterior, Vietnam Wall, WWII Memorial, Korean Memorial all free; Washington Monument interior free with timed entry ticket (book 90 days in advance at recreation.gov); National Archives free; US Holocaust Memorial Museum free; Library of Congress free; all Memorial Bridge views free; Georgetown walking tour self-guided free; Kennedy Center free Millennium Stage concert (every day at 6 PM — free 1-hour performance in the Grand Foyer: the most underappreciated free cultural event in Washington D.C.); Metro $2-6/ride; Citibike $3.50/30 min; lunch at the Smithsonian museum cafeterias $8-15; Georgetown Georgetown Cupcake free cupcake (one free cupcake per day at 6 PM — check Twitter/X for the daily flavour)