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

3,000 market stands in five former Zeppelin hangars.

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

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

This soviet pilot's graveyard is filled with headstones made of airplane fins.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

Mysterious craters may have been home to an ancient cult.

An abstract monument to a symphonic composer.

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

This disappearing geyser has been attributed to witchcraft, but really it's all about rainfall.

The Guardian of Tallinn.

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

270 million year-old forest of stone.

This historic Chinese tower was said to have been haunted by fox spirits but is now haunted by a grisly murder.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A golden temple atop a sacred mountain, known for its giant effigy of the revered Pu Xian.

This Tang Dynasty behemoth is the biggest Buddha in the world.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

A white Buddhist temple with a golden restroom.

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

A decommissioned submarine base makes a great space for graffiti art.

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