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

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

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

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

Golden Gate Park's historic collection of plants.

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

Why walk on this historical site when you can zoom down instead?

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

10,000 flowered plants bloom in the City of Roses.

This unique Seattle structure was designed to be the greenest commercial building on the planet.

Granting the right of way to ships over surface traffic since 1917.

This mostly abandoned shopping outlet is now adorned with beautiful graffiti and murals.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

From pre-war whiskey cocktails to prohibition-era speakeasy secrecy, this bar has seen it all.

The real faces of Venice beach captured on Romanesque columns.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Frida Kahlo's childhood home, now a museum of her life and works.

This amazing collection includes rare stamps from around the world, including fluorescent ones.

A hotel and restaurant serving as the mecca of kitsch.