One of the newest mosques in a city filled with thousands.

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

One of the largest wooden constructions in Europe was meant to be a casino, but soon became an orphanage.

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

Roman ruins top white travertine terraces formed by ancient hot springs.

Roman ruins, natural methane fires and a lovely beach.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

A non-profit that uses the impressive smelling abilities of African Pouched Rats to find and clear unexploded land mines.

A secluded, little-known temple hidden amid the dense jungle.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

A battle between nature and architecture in the Cambodian jungle.

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

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

A quick and simple solution to Cambodia's train woes.

Take a hidden path to the mouth of the cave to watch millions of bats swarm at sunset.

One of the biggest markets in Asia, under one of the continent's largest domes.

Khmer Rouge's high security prison.

A small, but award-winning beach known for its literally spotless reputation.

This architectural oddity is an oasis of green on the outskirts of Valencia.

This abandoned viewing platform has become a monument to unnecessary government spending.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A curious fountain that resembles a beloved character from the 1960s.

Vibrant street art created with mixed media.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.