Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

Go inside to really appreciate this 500-year-old technological masterpiece.

A historic observatory precariously perched at the "Top of Europe."

Baroque celebration of the end of the Great Plague of Vienna.

A student driver's nightmare.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A museum dedicated to the history and exploration of both popular music and science fiction.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A wall of chewing gum moonlights as collective art.