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

This bridge is so steep it looks like a rollercoaster.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

An enormous, inside-out glass globe built in 1935.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

When the rain falls, this drain system turns into a musical instrument.

A Jenga-style cylindrical tower of books that appears to go on forever.

View one man's eccentric collection of nearly 5,000 corkscrews, then sip some Chablis.

A honeycomb-like structure of interlocking shelves creates a beehive of books.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Spend the night in this formerly abandoned traditional Scottish village.

A little church on a tiny island looks like something from a fairy tale.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

These 5,000-year-old cave paintings provide a glimpse into prehistoric Finnish life.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

Inside the Finchingfield Guildhall, two sticks that belonged to alleged witches in the 17th century.