This nine-story building is the oldest standing skyscraper in D.C.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

The National Park Service’s best-kept secret with views that rival any in D.C.

D.C. once had its own tiny rival to the New York Stock Exchange.

A line of blue paint marks the route of the inaugural parade.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

A tiny, unassuming park in Tampa that belongs to the Republic of Cuba.

This Florida resort community is where the Amish come to have fun in the sun.

For 32 years the famous Ringling Bros circus troupe spent winters in this sunny spot in Florida.

A hidden beach at the end of a tunnel of mangrove trees.

The smallest post office in the United States is no bigger than a broom closet.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

This isolated airport in the middle of the Everglades sees more alligators than planes.

In memory of the 110 victims of ValuJet Flight 592 that crashed in the Everglades.

Found: Garden of Eden in Miami-Dade County, Florida.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

A unique collection of diving equipment spanning antiquity to the present day.