The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A daily replay of the experiment that proved the rotation of the Earth.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

Electrical pylon in the shape of Disney's beloved mouse.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This quirky curiosity shop takes its cues from the world's bazaars.

King Ludwig I's collection of beautiful women.

A stairway to heaven, or to nowhere at all.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Yo, Adrian!

This elaborate towering structure was once famed for its revolutionary height.

The first American department store, and home to the largest operating musical instrument in the world.

World's first "penitentiary," meant to be humane, drove men insane.