Megachurch turned Catholic church comprised of 10,000 glass panes.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.

An urban laboratory.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A lake at the bottom of the ocean.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

A Buddhist theme park brings you a Buddhist version of Hell.

Fortified medieval tower house with lovely roof garden.

A bizarre form of natural mummification was discovered in the church of this Frisian village.

An ancient Viking village in North America that predates Columbus by 500 years.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

Limestone grottoes turns everyday objects into stone.

Mexico's astounding mummy museum with "the world's smallest mummy."

A former imperial sea-fortress and Soviet prison.

Bridge that died in war and was resurected.

Once the home of a hermetic monk, this cave now houses a small church.