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

What started as three small gnomes at the base of a tree has grown into a full-blown gnome home.

Loyal fans of one television's most famous painters still come to pay their respects.

A vast array of tropical plants collected by a vacationing couple.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

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

A haunted hill that supposedly defied gravity.

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

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

Inside a state forest, the forgotten remains of a Cold War defensive installation.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

The stone labyrinth in this New Orleans city park was laid to symbolize healing in the wake of Hurricane Katrina.

After the parade, students throw their beads on the tree hoping for good luck on exams.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

This strange example of the Egyptian Revival architecture trend now holds Mardi Gras floats.

A house of courtship where the Jazz Age's most storied lovers got their start.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

Site of a former hidden treehouse in New Orleans.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.