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

This state park was once an important Native American cermonial center.

One man's grief over the national tragedy has manifested in a pod of homemade whales on his front lawn.

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

Off of the Crawfordville Highway in Florida, nature is taking back this decrepit row of Ford trucks.

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

The third tallest lighthouse in America once guided author Stephen Crane to safety.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

A monument celebrating the idea of reaching inaccessible places.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

This fairytale-inspired cottage was created by a university literature professor.

The only Florida state park with publicly accessible caves.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Town of spiritualists and mediums in Florida.

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

A giant wooden statue of one of the greatest pitchers in 19th-century baseball.

Steel remnants of a bridge make up a unique sculpture along the banks of the Illinois River.

A Depression-era sculpture by Charles Umlauf survives in a small suburban post office.

These Depression-era WPA sculptures have made a couple of stops over the years.