This mysterious tower is said to enshrine a dormant seven-headed serpent that once protected Vientiane from destruction.

When the USA donated cement and funds to expand the airport in Laos, the Laotians built a massive monument instead.

This museum stands out for its poignant portrayal of the atrocities of the Vietnam War and serves as a vital educational tool for promoting peace and understanding.

Founded by French colonists in 1919, this mountain resort has been transformed into one-of-a-kind theme park.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

This candy-pink cathedral of Da Nang is also known as the Chicken Church.

This spectacular bridge supported by two gigantic hands looks like something out of a fantasy universe.

A unique sculpture designed to outline humanity's reliance on oil.

The last fully functional fortress of Germany's World War II Atlantikwall.

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

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A former French military respite turned jungle tourism hotspot.

A symbol of Islam in oil-rich Brunei.

An impressive museum dedicated to the resource that made the Scandinavian country rich.

A former factory now pays tribute to a local industry fueled by sardines.

Norway's oldest cathedral still in use.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

Limestone outcrop decorated with a large laser engraving of the Buddha.