Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

This ancient market is often referred to as the oldest shopping mall in the world.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The last surviving submarine from a strange chapter of Finnish history.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A subterranean house of worship carved right out of the bedrock.

The Guardian of Tallinn.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

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

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

A rare example of World War I trenches from the British front.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

A small museum built by a family that survived the Siege of Sarajevo.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.