Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

This legendary urban waterfall creates a dazzling display of rainbows.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This unusual lava tube spouts seawater during high surf.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A Swedish farm is the world's only producer of the rare, creamy delicacy that is moose cheese.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Gold Rush-era tombstones line the park's paths.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

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

Golden Gate Park's historic collection of plants.

An overlooked and unassuming engineering marvel.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

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

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

Olfactory delights in San Francisco's Botanical Gardens.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.