A museum dedicated to the history of psychiatric treatment featuring a gallery of art made by patients.

A centuries-old iron mine is now a paradise for explorers, divers, and spelunkers.

A small church in Uppsala hides the grave of a renowned 18th-century astronomer.

A 200-year-old collection of medical paraphernalia in a historic house.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

This millstone commemorates a gruesome tale that may have been the source of the city's name.

These ancient rune stones plucked from the countryside now call this university park home.

A semi-sterile mutant birch that became Sweden's national tree.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

A centuries-old copper mine that once provided two thirds of the world's copper supply.

A well preserved remnant of the English Civil War.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

Medieval village and microminiature museum.

A pastry shop specializing in Sephardic sweets serves historic recipes in Ribadavia’s Jewish quarter.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

A taste of Middle Earth, in the middle of the Bayou City.

This now abandoned restaurant provides some of the most amazing views of Lisboa.

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

In the Monastery of São Vicente resides a gallery devoted to a breathtaking collection of seashells.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

One of the oldest libraries in the world is still operating and contains the oldest existing document in the Italian language.

A multi-storied painting that depicts the area's rich and diverse maritime history.