This massive waterfront market is located at the "gateway to the Amazon."

The unexpectedly beloved remnants of a controversial thermal power plant.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Home to the ancient Roman temple of a lesser-known Celtic god that inspired J. R. R. Tolkien and H. P. Lovecraft.

The only medieval bridge in Britain with its defensive tower still in tact.

Britain’s highest medieval monastery is a remote ruin nestled at the head of a valley 1,240 feet above the sea.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

Beijing's version of Disneyland, completely abandoned, mostly destroyed.

This fortress was designed to prevent a Nazi invasion but was never used.

A monolith stands at the site of the most significant battle ever fought on British soil.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

The final resting place of England's most notorious bandit.

An unexpectedly extraterrestrial room in a former Victorian resort club.

After years of slow decline, a derelict Gothic castle is now being restored to life.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

Remnants of a Victorian garden feature sitting in public woodland.

Hidden beneath the streets of London is a secret subway that only carried mail.

The somewhat misnamed 'Garden of Shells' lovingly built from found objects.

The encased skull that is widely believed to belong to St. John the Baptist.