A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

At 207 feet, one of the world's longest continuous escalators.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The site of the climactic scene from the classic horror film is now a historic landmark.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."