The largest stone moai on Rapa Nui.

This collection of ancient, mountaintop, underground tombs was once hidden by decades of bloodshed.

A celebration of Colombia’s premier contemporary artist.

In 2008, this Mexico City metro station was the site of an hours-long fight between emo, punk, and goth groups.

This scenic cable car ride glides 100 feet above Mexico City.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

For true northern-style phở with broth as clear as consommé, hunt for this restaurant hidden within a residential home.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

One of Ayutthaya’s most iconic locations is a mysterious, hauntingly surreal miracle.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

A small 12th-century temple surrounded by waters believed to have curative properties.

This impressive clifftop temple was once at the center of an international custody dispute.

A battle between nature and architecture in the Cambodian jungle.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

The soaring gondola lines form the longest aerial cable car system in the world.