An encyclopedic collection of mammal penises.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A concrete mushroom that divided Stockholm residents for nearly a century.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

Maybe the only restaurant in the world where your seat will be signed by a Nobel laureate.

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

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

The final resting place of the man whose name has become synonymous with greatness.

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

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

A 12th-century church with a medieval fresco and an intriguing “Greek runestone.”

Every Tuesday, students let off steam by screaming into the night air.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Frequent fliers welcome in this airplane hotel.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.

"Only the dead get off at Kymlinge."

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

When this 18th-century observatory's meridian was moved, it set Sweden's time back by 0.04 seconds.

Stockholm's tiniest statue is of a small boy looking at the Moon.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

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