One of the oldest suspension bridges in the world blends in perfectly with a medieval castle.

Dr Barnes' $25 billion private collection of art and arboretum.

The Fabric Workshop and Museum showcases fabric and mixed media work by artists of great international renown as well as local and outsider artists.

Trace the history of the nation’s early days at the site of America’s oldest stock exchange.

Striking fusion of Islamic and postmodern architecture, said to be the largest mosque in Western Europe.

When this 400-year-old fountain fell into disrepair, officials covered the mess up with what looks like a giant soup tureen.

Crispy, cheesy rice balls—the Roman answer to arancini—take center stage here.

A sculpture serving as an homage to Pope John Paul II.

Italian horror legend Dario Argento’s own shop hides a sinister museum-dungeon in the basement.

The mystic whose incorrupt corpse still attracts the faithful.

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

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

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

A wooden rollercoaster that still delivers a thrill.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Wander down a side street dedicated to one of the members of the Beat Generation.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

The most beautiful Taco Bell in the world even has surfboard parking.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

This private residence was the template for one of the most beloved television homes of all time.

This overlooked courtyard and museum celebrate Benjamin Franklin's life and achievements.