Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

A desert in southeast Asia, complete with a beautiful lake covered in lotus flowers.

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

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

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

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

Life-sized painted illusions let pedestrians blend in with the street art.

A simple Colonial home with a past haunted by death and madness.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

The oldest still-operating tavern in the United States was once owned by a pirate.

New York City's smallest piece of private property.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A hip bar decorated with walls of golden skulls.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

This basement museum explores the art and artistry of fascism.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

One of downtown Berlin's last reminders of its Communist past.