Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

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

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

A gorgeous gilded tower houses what may be the world's largest collection of gin.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

This Vietnamese hell cave lets visitors take a walk through a devilish underworld full of demons.

Vietnam's largest Buddha statue depicts a female sage.

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

A secluded, little-known temple hidden amid the dense jungle.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

This sculpture was made in 1973 for the city's 300th-anniversary celebrations and was largely considered an eyesore at the time.

This water-locked cliff face is covered in hundreds of ancient pictographs.

A massive, fading granite poem is all that remains of one Whitman superfan's tribute to the famous writer.

A castle built for love, and abandoned due to heartbreak.

One of Mother Nature’s geological gems, home to many prehistoric fossils.

Thanks to its curved shape, this incredibly durable dam "whispers" to visitors.

Canada's subterranean Cold War museum has doubled as a movie set.

A boardwalk winds above this beautiful bog full of wildlife and a rare type of turtle.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

Now a public art piece, this curious metal feature originally advertised a tinsmith's services.