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

An abstract representation of weather in Sweden.

Frequent fliers welcome in this airplane hotel.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

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

The library's graceful rotunda is like a bibliophile's temple.

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

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

The apartment where Pippi Longstocking came to life.

Stockholm's deepest subway station is also a stunning ecological wonder.

A miniature statue of a beloved character from children's literature.

There are hidden patterns on the subway seats of some Stockholm metro cars.

Small Easter eggs are hidden in the ventilation holes of the city's newest trains.

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

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

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

The 19th-century home of Count and Countess von Hallwyl is now a museum.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

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

This legendary dessert was served to Nobel laureates for decades.

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

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

Finally reunited, the three effigies now stand in a museum courtyard.

This centuries-old rooster survived a devastating fire.