This quirky curiosity shop takes its cues from the world's bazaars.

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

Location of a reliquary containing bone fragments of 18 saints.

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

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

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The only castle in North America to ever house European sovereigns.

This replica of the Greek structure is in the heart of Nashville.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The world-record holder for the longest bridge stretching continuously over water.

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

"X" marks the spot of an echo chamber in the middle of a plaza.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

After just one epic test blast, this literal loose cannon proved too explosive for combat.

A white oak with property rights.

The only Florida state park with publicly accessible caves.

This phone booth-sized municipal building has been a piece of police property for more than half a century.

Georgia may have been on his mind, but this memorial in Florida shows that Greenville was really Ray Charles's childhood home.

This historic oak tree has been around for over 300 years and might last for 300 more so long as it doesn't fall apart first.

A beautifully detailed Victorian house designed to be easy to flee, built by a man haunted by fire.

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

How Quincy, Florida became the richest town per capita due to one man's shrewd business acumen and taste for fizzy drinks.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.