Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

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

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

A retail shop has preserved the 17th-century food cellar from the old building it now occupies.

A lecture hall sink once used by Einstein and other noted physicists is now regarded as a strange science relic.

This public library and its impressive collection of academic books have not changed since the 17th century.

The world's largest model of our planetary system.

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

Every Tuesday, students let off steam by screaming into the night air.

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

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.

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

The Netherlands' first car tunnel has an unusually rectangular shape.

Sweden's largest optical telescope sits on a rooftop in Stockholm.

Sweden's oldest animated sign is still lighting up the skyline today.

A pre-Hispanic pyramid in the middle of a tourist district in the Canary Islands.

This unique bridge physically lifts a piece of the road into the air to let boats pass by.

Amsterdam's former hotspot for public executions and dissections.

A late-medieval Dutch castle with trick fountains in its whimsical water gardens.

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

This early 19th-century graveyard is the final resting place of Vincent van Gogh's mother.

A series of well-preserved ruins show the culture of the ancient Benehoaritas people.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.