The final resting place to 300 Victorian-era pets hides inside the city park.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

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

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

There's a labyrinth of manmade tunnels stretching for over an acre beneath Bristol.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

Banksy's image of a naked man dangling from the window of a sex health clinic.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

The Bristol Camera Obscura housed in an ancient windmill.

A tribute to an explorer and naturalist often overlooked by history.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

A quiet memorial to those who died saving others in the heart of the City of London.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

It's a mystery why these remains were found with no traces of their bodies in sight.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

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

This London marker celebrates the spot where the world-famous English band was founded.

England's foremost purveyor of funeral furniture hasn't changed a bit since the 1960s.