The largest greenhouse in the world is home to over one million types of plants.

A unique waterfall that some believe attracts the fairfolk.

This 1920s Dutch barge is now a floating bookstore.

Surreal riveted sea forts once protected the Kent shores from German attack.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

400-year-old garden, restored to beauty.

A fantastic castle rumored to be the birthplace of King Arthur.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The longest hedge maze in the world.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The sign at the garden gate reads: "These Plants Can Kill."

These fantastically named natural pools look like something out of a Scottish myth.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."