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

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

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

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

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

An abstract representation of weather in Sweden.

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

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

A water reservoir disguised as a castle stands atop a hill in a park in Stockholm city.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

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.

An entire shopping mall and industrial terrain named for the time the king of Sweden's car went into a ditch.

These airport hangars are now a bustling shopping center with only hints of its past still lingering.

Sweden's oldest street has not changed for nearly a millennium.

The second oldest anatomical theater is housed in a museum of curiosities.

A large collection of ancient runestones decorates this university courtyard.

The official meeting point for the oddly named governing assembly of ancient Sweden.

Ancient burial grounds of the wealthy.

This mysterious runestone embedded in a church wall is linked to the medieval cult of Saint Erik.

A nightly tradition fills the streets of Flogsta with a collective scream.

In the town of Åtvidaberg, the midday sun sets off a loud cannon boom.

The lost American era of gunfighters, bandits, Indians and steam trains is recreated in Sweden.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.