Light still pours into the ruins of this ancient Islamic observatory.

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.

The Avenue of Mausolea is a series of grand palatial tombs.

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

A monument at Alicante Marina honors a little-known hero of the Spanish Civil War.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

A colorful street named for the legendary Australian rock band.

A micronation of epic proportions.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

Alien rock formations grown from the sands of an Australian national park.

Khmer Rouge's high security prison.

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

Skyscraper powered by wind turbines attached between its towers.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

This fountain pays homage to Qatar's history of pearling, the primary industry before oil.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

An isolated dive site teeming with cnidarians.

A museum now occupies the mansion in Samoa where the prolific Scottish writer chose to spend the last years of his life.

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

Africa's Venice on stilts.

Rome’s legendary peephole vista is also a former Crusader stronghold.

This historic spot was where America's involvement in the Vietnam War officially came to an end.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

This network of tunnels housed an entire village for years, and even had a hall for screening movies.