This giant subway sculpture celebrates the fruit that inspired the theory of gravity.

The world's largest model of our planetary system.

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

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

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

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

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

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

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

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

Stockholm's tiniest statue is of a small boy looking at the Moon.

Stockholm's narrowest alley is barely over two feet wide.

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.

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

It houses the remains of a 17th-century version of the Titanic.

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

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This stunning concert hall has become a symbol of Iceland's national recovery.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This elegant arc of a waterfall marks a religious turning point.