This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

The only runway directly into the magic kingdom has been closed since 1972, but it still sings to you if you drive fast enough.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

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

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

The largest retailer of seashells in the world.

A building so large that it has its own weather.

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

A luxuriant botanical garden below sea level.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

This jail which was in service for over a century is now open for curious visitors.