An abandoned Cold War missile radar site.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

A giant sculpture dedicated to a staple of South Bend food culture.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

An acoustic anomaly with a mysterious cause.

One man's ambition created this psychedelic log home.

Closed for decades, this strange symbol of Japan's Expo '70 has finally opened its psychedelic insides to the public.

Dead weights honor the dead of Portugal's fishing industry.

Colorful boxes placed over the dead are left to rot and crumble.

World's first "penitentiary," meant to be humane, drove men insane.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

A 20th-century picture show in 3-D.

A castle built by an eccentric medieval enthusiast in rural Ohio.

One man's artistic vision is a small town government's legal battle.

Hundreds of wooden coffins dangle from cliffs and caves in the Philippines.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

The remains of diamond fever taken over by the desert.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

A pixel art killer whale is frozen mid-leap in this Vancouver square.