No one knows who's responsible for decorating this tunnel with stuffed animals, but the people love it enough to protest their removal.

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

Locals believe this abandoned ruin on the outskirts of Bucharest is haunted.

This crumbling Portuguese ruin overlooks the populace it once ruled.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

This Stockholm light tower can be controlled by anyone with a smartphone.

A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

These ancient artifacts are a testament to the enduring significance of the bull in Spanish culture.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.