Kaunas, Lithuania

Kaunas sits at the confluence of the Nemunas and Neris rivers in central Lithuania, where roughly 300,000 residents live among layers of medieval brick and interwar concrete. From 1920 to 1939 the city served as Lithuania's temporary capital, since Vilnius lay under Polish administration, and that two-decade status reshaped its skyline. The Old Town preserves a 13th-century castle and a 17th-century Town Hall, while the centre beyond it holds one of Europe's densest clusters of 1920s–1930s Functionalist buildings, crowned by the 1933 Christ's Resurrection Basilica. Two funiculars from that same era, the 1931 Žaliakalnis line and the 1935 Aleksotas line, still carry passengers up the surrounding hills. What waits at the top explains why so much of this was built in a hurry.