The final resting place of soldiers' loyal canine companions.

England's most notorious suicide spot.

Follow the original medieval paths that wind through this intriguing section of the city.

Public access to clean drinking water was an instant hit among the masses.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

Pop culture has helped to keep this iconic British building from being destroyed.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

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.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

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

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

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

The longest hedge maze in the world.

Northern Ireland's Brobdingnagian stepping stones.

Catacombs turned marketplace.

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

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Famously misunderstood wonder of the ancient world

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

This overlooked street light once served as a KGB dead letter box.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.