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

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

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

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

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

This giant wire frame man sculpture is crouched in contemplation.

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

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

The Swedish flag over this small naval fort signals that the nation is at peace.

At low tide, you can see the remains of a 17th-century ship just off a Stockholm island.

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

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

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

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

A miniature model of the iconic Stockholm department store.

What looks like a birch tree smushed between two pieces of glass often confounds commuters.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

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

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

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

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

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

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.

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