This picturesque ghost town is located on the banks of the Suwannee River.

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

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

Arrr! The most authentic collection of pirate artifacts in the world... matey.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

A relic from one of London's worst 19th-century slums.

This museum inside a museum tells the story of London's timepieces.

There's an exclusive Beefeaters pub hidden in the Tower of London.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

This 1920s Dutch barge is now a floating bookstore.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

This small collection of rare books was uniquely locked up for safe keeping.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

London's old-school healing garden.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.