Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

A Wild West saloon that helped define a generation of psychedelic rock.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

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

Ancient pueblos built into the base of a natural canyon wall.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

Research missiles and rainbow auroras at the world's largest land-based rocket range.

An auroral research program that superheats the ionosphere.

The king of U.S. high points towers over every other peak on the continent.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

A seemingly inexplicable memorial honors a beloved Tampa fruit-seller.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

"Bite or Smite" became the unlikely mascot of a Tampa suburb.

Public works and national defense project meant to carve a canal all the way across the state of Florida.

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

Just below the surface, shrimp are producing temperatures hotter than the sun.

This funky outdoor gallery in Florida is filled with whimsical recycled art installations.

The world's largest private aircraft collection.

"We Seceded Where Others Failed."

Like Mardi Gras, only everyone's a pirate.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

A building so large that it has its own weather.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.