This statue and park honor the Swedish chemist Jacob Berzelius, one of the founders of modern chemistry.

A heated statue pays tribute to one of Sweden's great actresses.

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

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

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.

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

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

An abstract representation of weather in Sweden.

This unique sculpture is often overlooked by pedestrians.

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

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

Sweden's first electric elevator remains hidden within a fortress-like building.

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

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

Stockholm's last remaining paternoster elevator.

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

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

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

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

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

No one knows who's responsible for decorating this tunnel with stuffed animals, but the people love it enough to protest their removal.

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

Outside a Viking museum sits a modern-day runestone made by a Swedish runemaster using traditional methods.