An extra-wide chair built to accommodate the former president's big behind.

Eighty million natural history specimens call this gargantuan museum home.

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

This one has sailed five times as far as Sir Francis Drake's famous ship.

Hear the quietest sound from across the dome.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Giant, friendly pelicans in Central London, the most unlikely of places.

A naturally mummified 2,000-year-old man.

The underground sanctuary of a mysterious ancient cult.

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

A Nesting Doll of Churches.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

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."

The world's most active stratovolcano is almost always erupting.

Italian cave with exceptional acoustics and an unsavory history.

Every inch of this chapel is covered in craftsmanship from across the world.

An encyclopedic collection of mammal penises.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

The fairy tale castle of the "fairy-tale king."