One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Deadly airliner crash preserved for those willing to climb and pay respects.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

An Amazonian hotel is the ultimate treehouse and provides stilt based accommodation.

Four-story concrete hotel never opened to customers.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This cubist Vienna church building looks like some sort of alien stonehenge.

A sprawling collection of over 106,000 toys from around the world.

A curious collection of mechanical moving figures.

Where the sleeping monsters of Scotland's oil industry are left to rust.

The site of America's first commercial oil well essentially disappeared after the town went bust.

Where the oil industry began.

The nerve center of a massive, state-of-the art radio telescope that sprawls across Western Europe.

The world's first commercial spaceport is a disappointment of cosmic proportions.

This delightful little museum is dedicated to only one thing: pasta.

A stately palace has been converted into the world's largest cannabis museum.

A fascinating little museum dedicated to the thousands of chemical substances concealed in our food.

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.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.