This beautiful building in the heart of Manhattan's Financial District was empty for decades.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

A research lab and hands-on museum where visitors can experiment with retro technology.

This research center for rare prosimians is studying how they sleep to help prolong human life.

The legendary building that needed ghostly approval before being built.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

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

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

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

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

France's most famous cemetery, with some of its most curious tombs.

Japanese national treasure originally built in 593 CE.

Every autumn, this hillside is ablaze with red summer cypress.

Hot springs monkey spa in the middle of Hell's Valley.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

An exquisite tunnel of cascading flowers.

On Japan's Tashirojima Island, cats are king.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Numerical symbolism abound at East Asia's oldest observatory.

The middle finger of modernity.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The only structure left with direct ties to the Salem witchcraft trials of 1692.