An equine tribute in a charming Southern city that calls itself "The Horse Capital of the World."

Unique tower has outlasted a takeover of the company.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

This stately Georgetown rowhouse was once the home of a 54-year-old diplomat and his 16-year-old bride.

A pair of gargoyles peer into unsuspecting passengers at Denver’s conspiracy-packed airport.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

Archaeological sites and great food inside the island's largest mangrove forest.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

An abandoned asylum incorporated into a college campus.

Circleville is seriously smitten with this giant gourd.

The remains of a massive blast furnace in what was once one of the country's largest iron-producing regions.

Rare recess caves fill this unbelievably beautiful Ohio park.

The mounds at this site were reconstructed with the help of archaeologists and historians.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

Here lies Zona, whose ghostly testimony led to her husband’s murder conviction.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

This colorful gate stands as an entrance to the walled city of Old San Juan.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

Perhaps the oldest vine in North America, this sprawling plant helps make a sweet wine.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

This small memorial is almost as well concealed as Smalls himself was on the night he sailed to freedom.