This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

Furniture tries to escape an abandoned building in San Francisco.

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

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

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

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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A classic advertising icon immortalized in regal bronze.

The largest Star Wars collection in the world is its own galaxy of collectibles.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

The rusting remains of the largest assembled WWII fleet on the West Coast.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

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

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

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

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

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Man-made geyser that rises to the exact height of the Gateway Arch.