The world's only museum devoted to the wonders of fluorescence.

The spectacular history of spectacles on display.

A collection of biblical memorabilia.

Museum preserving torture methods from the past.

Cat art as far as the eye can see.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A curious collection dedicated to human and animal anatomy and pathology.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

The place where houses are born.

Most complete collection of Gymnosperms in the world.

Dutch woodpile home in the forest.

A grassy pyramid named after a French battle.

A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.