For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

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

The oldest surviving synagogue in New York City is now a soaring art space.

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

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

For over two centuries, this palace served as a residence for the Holy Roman Inquisition's leaders, a courthouse, and a prison.

These temples are among the oldest free-standing stone buildings in the world.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

Local legend associates this large limestone chunk with a giantess, but archeologists say it may be the remains of a neolithic burial chamber.

Resting place and mausoleum of the founder and first president of Turkey.

A former salt mine is now a cool picnic spot for families and asthmatics.

A small mountain at the crossroads of Turkey, Iraq, and Syria that some believe was the landing point of Noah's Ark.

A beautiful 19th-century Armenian mansion is preserved above an unassuming cafe.

One of the most exquisite Lycian hilltop citadels in Turkey.

This hidden gem is bathed in beautiful natural light.

A section of the long chain that blocked enemy ships from entering Constantinople.

The only residents of this abandoned housing development full of identical castles are stray cats and dogs.

An ancient church on a tiny island covered in stone bible stories has controversially been turned into a museum.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

Ottoman-era houses lovingly preserved.

Step back in time and witness the fall of Constantinople.