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

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

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

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

Mysterious craters may have been home to an ancient cult.

This street has over a half-dozen names, all at once.

This unique Lady Liberty is one of the only examples of the figure sitting down.

A peculiarly shaped brass sculpture hidden in a courtyard in central Lviv

This Ukraine alleyway has become its own little island of forgotten things.

One of the oldest temples in Ho Chi Minh City, dedicated to a deified Chinese military leader.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

The lavish temple of the Cao Dai religion that includes Buddha, Mohammed, Joan of Arc, and Victor Hugo.

This network of tunnels housed an entire village for years, and even had a hall for screening movies.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

This elephant kraal is the only one remaining in Thailand, dating back to the 16th century when these massive mammals were integral players in war and trade.