This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

A retired subway car stands alone in a field in the middle of Queens.

This "common-as-dirt" museum celebrates the glory of normalcy.

The middle finger of modernity.

A small chapel celebrating the spiritual bond between dogs and humans.

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

This fortress played a key role in the battle that would ultimately give rise to the Maratha Empire.

The plunge pool is a surviving relic of a rowdy royal residence.

This famed Silk Road oasis was one of the largest cities in the world before it was destroyed by a Mongol horde.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

This strange moor has a song written about it, Bronze Age carvings, and an alien sighting.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This small town Texas cemetery is said to be the burial site of a UFO pilot who crashed in the 1800s.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

A Hungarian pharmacy museum with a box full of mummy powder.

A museum in the childhood house of a medical pioneer.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.