After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

A saintly relic hidden in a Prague church basement.

The middle finger of modernity.

This fairytale medieval church in Poland originally spent centuries in Norway.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

This museum is a full-size replica of an original church constructed during the 13th-century.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

An intricately carved Viking church overlooks a glistening fjord.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

The sun acts as a key that only fits this giant keyhole twice a year.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

The Hopi-style structure was built by the man who discovered Desert Hot Springs' famous mineral water.

A monument to the Mohawk people stands along an old Native American trade route.

This museum pays tribute to the Cherokee leader who created a written language for his people.

This overlooked gem outside Niagara Falls preserves and celebrates Iroquois culture.

This museum pays tribute to the largest group in the Iroquois Confederacy.

A kaleidoscopic warehouse-maze of handmade neon signs.

A fire station-turned-church-turned-museum dedicated to the work of seminal light artist Dan Flavin.

Anyone can control this glittery light installation with just a phone call.

These wondrously illuminated caverns extend under the mountains of the Fukushima Prefecture.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.