A vast array of tropical plants collected by a vacationing couple.

These craggy limestone outcrops offer a glimpse at a unique piece of Florida geology.

The oldest house of worship in Palm Beach has a wonderful tropical garden.

This 25-foot tall clock tower commemorates the start of one of America's foremost shopping districts and the end of the historic Palm Beach Pier.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.

A mysterious castle built as a monument to lost love.

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

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

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

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

Flip your own pancakes in this old sugar mill within a Florida state park.

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

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

These mysterious ruins are hidden amid this sleepy coastal city.

An aviation relic that made coast-to-coast travel possible.

One of the largest Native American shell middens stands 30 feet tall.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

This impeccably preserved farmstead is a time capsule of a Pulitzer Prize-winning novelist's life.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

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

The second oldest jail in Florida gives insight into the realities of the criminal justice system at the turn of the 20th century.

How did a 154-foot-long piece of spacecraft wind up abandoned along the side of a Florida road?