The busy transport hub is home to the tallest airport slide in the world.

The supreme shrine of the state.

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

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

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Have fun at the world's first Buddhist waterslide park.

This Roman arena once played host to bloody gladiatorial battles.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

1513 Turkish world map, full of European state secrets and snarky commentary.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Eighty million natural history specimens call this gargantuan museum home.

The world’s first hotel to be run by robots.

Climb to the top of the world's largest seated bronze Buddha.

A church made of steel.