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

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

Sweden's "good old days" painstakingly re-created in a model village.

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

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

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

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

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

This pair of unsuspecting buildings are in fact the very first modern skyscrapers in Europe.

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

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

This floating sculpture of ice is a poignant reminder of nature's power.

This handsomely carved wooden church is more than 800 years old.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

In this museum, visitors are invited to touch the art.

One of the tallest lighthouses in the world also serves as a monument to the fallen of World War I.

This Roman monument is surrounded by more recent construction, offering a stark contrast between ancient architecture and the modern urban landscape.

During World War II, this rice mill became a Nazi concentration camp.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Angels and demons watch over newspapers in this deconsecrated church.

At the entrance of this chapel is a fresco commemorating the dead from the plague outbreak of 1630.

It's believed that the dead were once taken out of houses through these now walled-up doors.