Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

Native Americans built this circle of stones, which was used to predict astronomical events.

A Mormon place of exile in Missouri.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

The oldest scientifically dated tree in Europe lives on a remote cliff.

Two small chapels housed inside an ancient tree.

A shrine on the shores of the Tigris.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Pilgrimage site for star-crossed lovers.

A deadly ancient portal to the underworld.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

Temple of a million beers.

Buddha and Jesus tower over this French mountainside headquarters of the Aumism religious cult.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

Real bones which are said to have belonged to a Polish dragon.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

The longest hedge maze in the world.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Seattle's own bad art museum located inside Cafe Racer.

The magic's in the hole!

The scuba diving training facility was named for the steam that rises from the cave's chimney.