The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

From the Difference Engine to the Cray-1, all under one roof.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A B&B on a Victorian lighthouse station in San Francisco Bay.

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

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

Only hotel where you can legally launder money.

A monumental cross hides in the trees in Golden Gate Park.

These subterranean storage areas hold emergency water reserves.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

The miraculous hydrant that saved the Mission District in 1906.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Golden Gate Park's historic collection of plants.

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

This turn of the century masterpiece has a mysterious goaty interloper.

An overlooked and unassuming engineering marvel.