Visit the Church of the Savior on Spilled Blood

The largest surviving Romanesque church in Europe, built for pilgrims on the road to Santiago and topped by a five-tier octagonal bell tower.

Serbian Orthodox monastery with thousands of medieval frescoes, UNESCO-listed.

Medieval marble monastery, UNESCO-listed.

Paris’s 850-year-old Gothic cathedral, reopened after the 2019 fire with its spire and oak roof rebuilt by hand.

Soaring 1949 basilica with a green-tiled roof and pointed arches inspired by Congolese huts — Brazzaville's landmark.

Eleventh-century cathedral with original mosaics, a UNESCO World Heritage site.

White basilica on the highest hill in Paris, with the artists’ square of Place du Tertre and the whole city spread out below.

Peter the Great’s "Russian Versailles" with its cascade of gilded fountains.