A forsaken wonder in the middle of the East Side neighborhood.

Inside this medieval church resides a unique set of murals.

A once-fairy tale mansion now stands in a state of disrepair.

On the outskirts of the small village, an abandoned grassy field glitters thanks to the white stones of an ancient structure.

This giant squid sculpture sits near the spot where a real-life specimen was captured in the late 19th-century.

Experience this Iron Age village the way that its original residents would have.

A world of craftwork elegantly curated in a historic brick warehouse.

A 300-ship graveyard, with a few still visible at low tide.

An ancient city exhumed from the depths of the ocean.

This beautiful Romanesque church preserves stunning medieval frescoes and the excavations of a Roman market town.

The ruins of a thousand-year-old hermitage are tucked away deep in the sloping forests of Albano Lake.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

This underwater sculpture park is the basis for a manmade coral reef.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

All that remains of an ancient royal palace is a water channel that was used for drinking games.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

The underground sanctuary of a mysterious ancient cult.

A once celebrated industrial wonder now lurks in a quiet corner of Flathead Lake.

This abandoned Victorian-style house was built in 1884.

One of ancient Etruria's most spectacular archaeological sites with impressive necropolises and rugged landscape.

A taste of Middle Earth, in the middle of the Bayou City.

A museum dedicated to the mysterious cryptid.