Visitors to this library are in for a real-world education in modernist architecture.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

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

The final resting place of New Orleans' most famous voodoo priestess.

The narrowest house in America is seven feet of pure spite.

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.

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

Former villa and estate of James Deering developed to preserve native tropical forests.

A Community Cornerstone.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Don't blink or you'll miss it.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Elvis's own personal tropical hideaway.

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

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

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

This striking art museum holds an amazing series of curiosity cabinets.

Statue dedicated to the star of an old television show.

This former coal gasification plant found a curious second life as a popular public park.

A museum dedicated to the history and exploration of both popular music and science fiction.

A massive sea stack famous for its appearance in The Goonies.