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

The highway's southernmost spot is a beloved local attraction.

An icon among Florida's pre-Disney tourist attractions.

This kitschy curio wonderland is full of fake animals, teak tables, and a cacophony of random bric-a-brac.

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

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

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

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

The largest retailer of seashells in the world.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

Known as "Toronto's Flatiron."

One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

This Toronto garden collects stares and tchotchkes in equal measure.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

This icon of the Atomic Age now lays dormant.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This former factory has been transformed into a technicolor wonderland, where dozens of local artists have collaborated to create a real choose-your-own-adventure experience.

The site of a gold-digging conquistador's bloody landing in the Americas.

Manatees congregate around a power plant's discharge canal where the water is especially warm.