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.

The blinking light atop the iconic landmark has been sending secret messages for decades.

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

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

Historic funicular railway, believed to be the shortest railroad in the world.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

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

The legendary building that needed ghostly approval before being built.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

A Circus legend leaves an unexpected endowment.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

An icon among Florida's pre-Disney tourist attractions.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Electrical pylon in the shape of Disney's beloved mouse.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

The world's largest private aircraft collection.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.