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

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This chimerical bridge/tunnel appears to dead end right into the sea.

The world's first combination ski slope and power plant.

Copenhagen's celebrated theme park and gardens.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Model Trains and Much More in Hamburg.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Hamburgers are intensely proud of their tunnel beneath the river.

This dockworkers' lunch joint has been left leaning by a century of storm floods.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Europe's first floating restaurant is home to a hilarious legend.

A beautifully eclectic mix of architectural styles.

A unique collection of gilded age mechanical pianos.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

A set of seven houses, each built in a style that represents a European country.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

A little sculpture with a large wardrobe.

When you're a great Russian Tsar, even your vomit gets a statue.

This unusual elevator doesn’t stop or slow down.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."