This museum of Viking vessels allows visitors to take a replica out for a spin.

The charming storybook building now houses a small police museum.

Gravity seems to fail at this intriguing Swedish attraction.

A wooden street sign is the last remnant of this 400-year-old alleyway.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

Sweden's oldest animated sign is still lighting up the skyline today.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

The second oldest anatomical theater is housed in a museum of curiosities.

Said to be one of Sweden's most haunted places, this vicarage once even attracted a ghost-busting priest.

Frequent fliers welcome in this airplane hotel.

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

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

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

The internet as provided by a James Bond villain.

This Stockholm light tower can be controlled by anyone with a smartphone.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

It houses the remains of a 17th-century version of the Titanic.

The world's largest model of our planetary system.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Museum preserving torture methods from the past.