The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

One of the shortest streets in York has an especially odd name.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The site of a mysterious pony massacre is rich with extraterrestrial conspiracy theories.

A remote gravestone on the moor marks the spot where a teacher's body was found under mysterious circumstances that remain inexplicable.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A collection of abandoned typographic signs from Berlin and beyond.

The world's second largest single-dish radio telescope, once used to contact E.T.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

An ornate century-old elevator still connects the two halves of Bad Schandau.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

Massive installation of Europe's negative stereotypes.

A church of bones, decorated with 40,000 human skeletons.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

An enormous and lavish Gothic church in Czechia.

This former quarry is now a picturesque gorge that hides a sunken lake.

A bus with a butt and biceps to put Olympic athletes to shame.

An Orwellian sculpture with eyeball cameras watches passersby.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

This doorless 20th-century elevator doesn't stop or slow down.

Macabre astrological automaton clock dating to the late 1400s.

A Jenga-style cylindrical tower of books that appears to go on forever.