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

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

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

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

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

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

This unique sculpture is often overlooked by pedestrians.

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

A miniature model of the iconic Stockholm department store.

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

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

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

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

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

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

A man has revenged his true love's betrayal through tears and stone genitalia.

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

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

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.

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

An archway adorned with vulnerable flora and fauna.

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

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.