These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

Mexican food and folk art.

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

Although rarely used, there is still a hidden room for the royal family at the Stockholm central station.

Twice a year, this floating library delivers thousands of books to the remote islands of Stockholm’s archipelago.

This stone obelisk is a relic of the 17th-century Swedish mile markers.

Early habitat dioramas and home of the elusive gaff, the skvader.

One of the world's oldest continuously operating meteorological stations sits on a hill in Stockholm.

The three colorful women depict characters from a beloved children's story.

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

Stockholm's narrowest alley is barely over two feet wide.

The world's first combination ski slope and power plant.

The only surviving piece of Copenhagen's 16th-century defensive wall.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Copenhagen's celebrated theme park and gardens.

This sidewalk tribute honors Colorado's great culinary creation.

A technicolor place of worship for Elevationists.

An abandoned relic of the city's failed experiment with below ground transit.

This schoolhouse for Black American children is one of the oldest remaining in southeastern Ohio.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.