Oia's culture lives inside its architecture: skafta cave houses carved into volcanic pumice, sea-captain mansions from the 19th-century shipping boom, and more than 40 chapels. Between them sit galleries, a maritime museum and potters working local clay.
Oia's two architectures sit side by side on Nikolaou Nomikou: humble skafta dug into soft volcanic pumice by sailors and fishermen, and neoclassical captains' mansions with pediments and painted ceilings, rebuilt after the 1956 quake.
A caldera-edge gallery on the main marble lane showing contemporary Greek painters and sculptors alongside volcanic-landscape abstracts. Open roughly 10:00–22:00 in season; canvases run €150–€3,000 and staff will discuss shipping.
Oia's parish church, moved to the central square after the 1956 earthquake destroyed its caldera-side home. Blue barrel dome, a free-standing arcaded bell tower and a gilded iconostasis inside; open daily, modest dress expected.
A small independent space near the castle end of the village combining photography, ceramics and jewellery by Aegean artists. Prints of the caldera in black and white avoid the postcard cliché; typically open until 21:00.
Housed in a restored 19th-century sea captain's mansion, this museum documents Oia's age of sail, when the village owned a fleet of over 100 ships. Figureheads, ship models, rare charts and captains' chests. Entry about €5, closed Tuesdays.
A cave bookshop founded in 2004 by a group of friends, hand-built with painted ceilings and floor-to-ceiling shelves. Poetry readings, festivals and a roof terrace of hand-lettered spines; strong Greek literature in translation.
A 20-minute bus ride to Fira for the finds from Akrotiri: Minoan frescoes including the Blue Monkeys, gold ibex figurine and Cycladic marble figures. Entry €6, open 08:30–15:30, closed Tuesdays; bus from Oia square €1.80.
A 17th-century Catholic mansion hosting the Santorini summer festival of classical concerts and recitals, plus permanent engravings and photographs of the island before and after the 1956 earthquake.
A 19th-century canava, or cave winery, converted into a sculpture and painting gallery where art sits among the barrels. Owner Antonis Argyros guides tastings of assyrtiko and vinsanto aged in the tunnels; around €25 with tasting.
Several family potteries along Nikolaou Nomikou throw and glaze on site using island clay, producing the cobalt-and-white ware sold across Santorini. Watch the wheel at the back of the shop; small bowls from €12.
The kouloura basket-pruning method, unique to Santorini, coils vines into ground-level wreaths against the wind. Cooperative terrace tastings of assyrtiko, nykteri and vinsanto with the caldera below; flights from €18.
The island's best-preserved medieval castle village, a spiral of Venetian-era lanes climbing to the kasteli walls, with Theotokaki church and dozens of chapels stacked up the hill. Quiet, residential, and largely untouristed at dusk.