One of the largest Buddhist stupas in the world keeps an eye out in every direction.

The large collection of pre-Columbian pottery might make you blush.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The beautiful, fruit-covered facade hints at this building's former life.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

A little piece of Paris in the sultry south of the U.S.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Sasqu(w)atch out!

A public fountain that spouts "health water" from a nearby spring.

Shakespeare has been brought to life in this open air theater for the better part of a century.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.