FDR hoped to find a cure for polio in this Georgia town's warm springs.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

This historic hotel invented the chocolate brownie.

A historic lighthouse steeped in rumors of ghost and pirate stories.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

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

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

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

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

Inside this museum, the history of the Walt Disney Family empire is on full display.

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

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

Only hotel where you can legally launder money.

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

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

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The southernmost outpost of the Russian Empire in colonial America.

A grove of "candelabra redwoods" deep in California's Lost Coast.

This former stomping grounds of the most eminent astronomers of the early 20th century.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.