Largest lake in Great Britain measured by surface area.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

This secluded walkway overlooks a magnificently wild London green space.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

This hidden green space is the city's second largest conservatory.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

The anatomical-pathological collection of a man who changed surgery.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A hands-off space for graffiti artists to hone and display their skills.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

One part local history, 99 parts gruesome haunted house.

A 30-acre garden inspired by the principles of modern physics.

360° views of the city plus five floors of optical illusions and hands-on science.

The fountain marks the area where hundreds of accused witches were burned at the stake.