The oldest known university in the world is in Fez, Morocco.

Crumbling necropolis set high above Fez.

Traditional 11th-century outdoor tannery.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.

Mosaics, storks, and brothels—this ancient city has it all.

Founded as a refugee camp, now a popular tourist spot.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

A replica of a 7th-century church hides in plain sight in the middle of the concrete jungle.

A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

Hiroshima survivor on Riverside Drive.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

The site of the deadly Triangle Shirtwaist Factory Fire.

There must be a pun in this haystack somewhere...

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Avoid gangster interaction while window-shopping.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Lie in a hammock where George Washington stood.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.