The ancient latrines of the Greeks, in all their public glory.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

Bizarre dirt trail winds a narrow path above the tree line.

You can walk up Thailand’s naturally non-slip waterfall.

An enormous Buddha peers through a gap in its ruined chamber.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

Thousands of bats stream out of caves every night on the edge on Thailand's second largest park.

On stormy days debris from this unfinished and abandoned skyscraper rains down on the Bangkok streets.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

A limestone wonderland of water and subterranean secrets.

A series of tiny artificial islands rich with produce bob atop the surface of the lake.

Monkeys lounge around at this 13th century temple.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

White llama terraces dazzle in Peru's "other Machu Picchu."

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Death rituals and sacrifice inside a Peruvian megalith.

With nearly double the depth of the Grand Canyon, this Peruvian canyon is one of the deepest in the world.

Thousands of volcanic rocks carved 1,000 years ago.

Astronomical observatory above Lake Titicaca.