At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

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

This private residence was the template for one of the most beloved television homes of all time.

A huge musical instrument played by the ocean.

San Francisco’s century-old Christmas Tree.

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

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

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

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

A psychedelic labyrinth on the San Francisco bay.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

This demon atop the Notre-Dame de Paris looks utterly bored.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A museum of carnival attractions where you are invited to ride the rides.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

This museum houses an imposing skeleton army comprised of creatures great and small.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

France's national museum of scientific and industrial instruments.

Paris' linguistic guide to the international language of, yes, love.

A haunting collection of the vanished and disappearing natural world.

A mechanized clock where a man fights off a dragon, crab, and rooster.