Khmer Rouge's high security prison.

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

A battle between nature and architecture in the Cambodian jungle.

A Buddhist theme park brings you a Buddhist version of Hell.

Singapore's landscaping project is home to 18 incredible Supertrees.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Climb inside an iron crystal magnified 165 billion times its normal size.

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

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

This indoor ski resort has a mountain contained inside a mall.

This artificial archipelago was supposed to resemble a map of the world.

This peaceful sanctuary is one of the oldest Buddhist temples in Colombo.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

The palatial McDonald's that inspired Wesley Willis.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A public urinal so pretty, it was declared a national monument.

'The Letters of Utrecht' lays out a ribbon of poetry one letter at a time, with no final verse in sight.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.