Brussels' favorite peeing boy has a sister.

When you're a great Russian Tsar, even your vomit gets a statue.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

Lavish royal estate punctuated with heated greenhouses.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

A former imperial sea-fortress and Soviet prison.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

A collection of collections ranging from dentistry to minerals.

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

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

Lie in a hammock where George Washington stood.

Every dish is blessed in this basement eatery beneath a Hare Krishna temple.

Lehigh Valley barge No. 79 still gets tugged along - but now it houses a museum and unusual performances.

“Invented in Key West, Perfected in Brooklyn."

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.