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

The world's 2nd or 3rd or 4th busiest seaplane base.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

St. Augustine's record-setting narrow street was designed to protect against pirates.

It's a pretty creepy lock-up.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

This whimsical outsider art wall holds tiny treasures donated by the local community.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

An ancient cemetery with some historic bodies underfoot.

A plaque marks the spot on the bridge where one of the first elephants in the U.S., Little Bet, was gunned down.

As state high-points-by-elevation go this spot is one of the lowest, but for years it was also the hardest to climb.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

This small beachside park commemorates the possibilities of discovery.

The highway's southernmost spot is a beloved local attraction.

This now-deactivated naval base defended the Florida coast for centuries.

A Circus legend leaves an unexpected endowment.

A monument celebrating the idea of reaching inaccessible places.

Florida castle built with aluminum printing plates.

The only Florida state park with publicly accessible caves.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

To avoid the demolition costs this abandoned drawbridge was simply left in the up position.

The final resting place of New England's last "vampire."