In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

This Kyoto Starbucks takes coffee drinkers back in time.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

The world’s first stop-motion film was created on the racetrack outside this building.

Atop this former dutch railway office sits an interstellar work of art.

Marvel at this massive waterspout fueled by the incoming tide.

Locals rallied to save this beloved mural after someone mistakenly attempted to cover it.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

It was meant to help transport wounded soldiers to a secret underground hospital.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.

A rare double mill nestled along the banks of the Aa river.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

Tucked away in a downtown Stockholm park are the remains of a World War II defense position.

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

Legend says this demonic carving inside a medieval cathedral was one of Satan's minions.

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

This serene wooded hilltop has a dark history as the climactic point of the Swedish witch trials.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

This technological marvel is one of the world's first 3D-printed bridges.

Located in an old church, this brewery produces a different kind of holy water.

Uppsala's adorable feline sign celebrates a popular children's book set in the Swedish city.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.