Largest collection of mounted dinosaur specimens in the world.

Come for the speed, leave in love with the desert.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A small flooded ghost town with a few scattered structures remaining.

A house carved into a rock in the 1940s.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

This giant ice cream cone is the last remaining icon of a Salt Lake City staple.

Visitors to this library are in for a real-world education in modernist architecture.

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

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

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

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

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

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A monument to the love people have for their pets.

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

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

A huge musical instrument played by the ocean.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

One of the last remaining Carpenter Gothic churches is situated on a wildflower conservatory overlooking the bay.

San Francisco's newly reopened hands-on science museum.