Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

Home to the most complete dodo remains known - one head, and one foot.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

A sprawling maze of used books piled from floor to ceiling.

If you forgot something to read during your trip to Tokyo, this hostel has you covered.

One of Europe's oldest libraries.

Soaring over the Niagara Whirlpool since 1916.

This Frank Lloyd Wright summer house was designed along Lake Erie as a retreat for a client's wife.

Toxic waste disaster that founded the Superfund program.

A preserved factory in the "Home of the Carrousel" is now a museum dedicated to the classic wooden ride.

This landmark jazz venue is the oldest continuously running African-American club in the United States.

A science fiction-inspired apartment building designed by a famous Spanish architect.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

Self-sufficient greenhouse floating on the Hudson River.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Curious carved stones and bird-like wings are a symbol of Serbian resilience and freedom on the site of a WWII massacre.

A Serbian church lit by chandeliers made of weapons.

An abandoned saucer-shaped monument in the Bulgarian mountains.