Pop culture has helped to keep this iconic British building from being destroyed.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Famously misunderstood wonder of the ancient world

There aren't too many operational funiculars around, but Pittsburgh has two!

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

This dramatic rail curve was once the target of a failed Nazi attack.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

This university transit system is a 1970's vision of the future.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

A large replica of a monumental Roman inscription is located on the side of this museum.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

The walls and streets of the ancient city are peppered with penises.

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

An ancient Roman temple first dedicated to an emperor's wife is now a church.