Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A hidden "place of interment for gentlemen."

A celebration of capitalism in Midtown.

One of only two commuter aerial tramways in the United States.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

The celebrated eyesore created by starry-eyed sweethearts.

Elevated freight railway turned wildly successful urban park.

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

The world's brightest bioluminescent bay.

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

Try not to get slimed in Tribeca.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A battle between nature and architecture in the Cambodian jungle.

A crumbling hospital from the 1850s on Roosevelt Island.

Macabre astrological automaton clock dating to the late 1400s.

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

The most famous location in China was home to whole dynasties worth of imperial rulers.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.