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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A multi-storied adobe complex has been inhabited for more than a thousand years.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A museum dedicated to the alleged Roswell Incident.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This upscale restaurant specializing in Michoacán cuisine serves sauces tied to important life events.

This modern theatre is housed inside a convent constructed more than 300 years ago.

This 16th-century church now has a heavenly second life as a cultural hub of Pátzcuaro.

This colorful gate stands as an entrance to the walled city of Old San Juan.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

This ancient Hawaiian henge may have been an early star chart.

A unique set of caves that spits waves back out into the ocean.

This blowhole is supposedly caused by a trapped monster.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Watch the newest land on the planet form before your eyes.

A priest with no formal artistic training used basic house paint to create gorgeous religious scenes inside this historic church.

These ancient sacred grounds granted amnesty to those who managed to reach them.