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

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

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

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

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

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

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

The beginning of the historic Iditarod Trail connecting the Alaskan cities of Seward and Nome.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

The Internet Age began with a transmission from this biker bar.

A wonderfully curated used bookstore in an airport.

Whimsical sculptures dot a woodland path surrounding their creator's old summer cottage.

Ornate limestone building now filled with geologic specimens, and more.

This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

This stately clubhouse has showcased German-American culture for over a century.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

The former broadcast site has been reimagined as a museum about the medium.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.