This one-time health resort was used by aristocrats around the world.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

Single runway interrupted by a busy road that cuts across its middle.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tiny church on a man-made island in the Adriatic.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

Bridge that died in war and was resurected.

An ancient knight and a symbol of the city's freedom.

Gargoyle head that brings good luck.

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A unique hotel for the artistic soul.

The Guardian of Tallinn.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

This former Nazi labor camp is now a poignant memorial, complete with giant Soviet-style monuments.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

A black cat protests the City Guild in Riga's Old Town.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Flamboyant architecture from the turn of 20th century.