1. Fort Dade, Egmont Key State Park
At the mouth of Tampa Bay, the tiny island of Egmont Key has a unique history to explore (heads up: it’s only accessible by boat, so you’ll need to work for it). Although the island was active in the mid-19th century as a camp for captured Seminoles during the Third Seminole War, the island’s current structures came later, when Fort Dade was established in 1898. The fort itself was built in preparation for the Spanish-American War, and by the time it was completed in 1906 the fort had standard-issue perks like a movie theater, a hospital, brick roads, and tennis courts for its 300 or so residents. The fort was eventually deactivated in 1923, but you’ll still see remnants of Fort Dade (along with a lighthouse operated by the Coast Guard) today, including a worn-out brick road for walks down memory lane.