Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

The only recreation of William Shakespeare's indoor playhouse.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

This famous city eluded concrete detection until the early 2000's.

Ancient serpentine sacrifice holder that has stood the test of time.

1513 Turkish world map, full of European state secrets and snarky commentary.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

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

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

Protecting the dead from opportunistic body snatchers.

The final resting place of soldiers' loyal canine companions.

Watch the newest land on the planet form before your eyes.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

These ancient sacred grounds granted amnesty to those who managed to reach them.

A controversial memorial at the place where Captain Cook met his violent end.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Roadside collection of 65,000 signs.