The center of Stockholm can be found along this quiet street.

A centuries-old copper mine that once provided two thirds of the world's copper supply.

A reproduction of a mysteriously preserved body found in the 18th-century and put on display for years before burial.

A centuries-old iron mine is now a paradise for explorers, divers, and spelunkers.

A semi-sterile mutant birch that became Sweden's national tree.

The city that saw the birth of Sweden is now home to an impressive collection of work from its favorite artist.

His body was found mysteriously preserved in a Swedish mine over 40 years after his initial disappearance.

An oil drilling mistake created this fountain that has been spraying water for over 150 years.

The world's biggest version of the popular Swedish souvenir.

This tree was once used to calculate the decrease of the Baltic Sea.

A traveling Bronze Age sacrificial stone that was used to honor elves, fairies, and other woodland spirits.

This railroad track was so secretive that it was omitted from all maps.

"Only the dead get off at Kymlinge."

The remnants of a WWI naval mine that once terrorized the country now decorates a street.

Despite dreams of constructing this fairytale mansion, Albert Gotthard Nestor Cedergren never saw its completion.

The apartment where Pippi Longstocking came to life.

Crystal chandeliers brighten up this dark underpass.

The single richest source of elemental discoveries in the world.

One of the world's first dedicated bank buildings in the world is now the oldest one.

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

An ancient tree that was once the favorite of a young Swedish royal.

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

It was meant to help transport wounded soldiers to a secret underground hospital.

Locals rallied to save this beloved mural after someone mistakenly attempted to cover it.