The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The drama of nature in full effect in this Nevada State Park.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

Like Mardi Gras, only everyone's a pirate.

It's a pretty creepy lock-up.

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

A Circus legend leaves an unexpected endowment.

A monument celebrating the idea of reaching inaccessible places.

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

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

Town of spiritualists and mediums in Florida.

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

Where manatees are the snowbird vacationers in these balmy Florida springs.

A luxuriant botanical garden below sea level.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.