Golden Gate Park's historic collection of plants.

A 300-ship graveyard, with a few still visible at low tide.

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

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

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

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Olfactory delights in San Francisco's Botanical Gardens.

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

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

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.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

Considered by many to be one of the most dangerous highways in Alaska.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

This historic Victorian hotel has a scandalous history of affairs and murder.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Traditional 15th century Chinese garden in the middle of Vancouver.

The city of Halifax still bears the scars of the largest explosion prior to the atomic bomb.

This Canadian monument to the man who invented the telephone allows visitors to get up close and personal with the artifacts of his life.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."