Elaborate drama imparts an appreciation for 19th century hardships.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Every president in history is immortalized in bronze in downtown Rapid City.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A fitting attraction for the corn capital of the world.

Cold war icon and onetime "hole" in the iron curtain.

The most visited, and possibly most controversial, museum in Germany.

Breathtaking and huge 430 year old maps of Italy.

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

Hundreds of hidden passageways weave through the old quarters of Lyon.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

The most loyal of little dogs, or a Victorian era publicity stunt?

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

Protecting the dead from opportunistic body snatchers.

Repository for more than 22 million pickled specimens.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

The monster at the center of the Darwin Center Spirit Collection.

Catacombs turned marketplace.

Scattered throughout London are ancient remnants of the city's former bounding wall.

The curios of pharmacist and collector Henry Wellcome.

Hear the quietest sound from across the dome.