It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

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

A whimsical cottage from the 1300s with a preserved Victorian-era post office inside.

Now nearly dry, this lake is said to be the ancient home of the Lady of the Lake, and was once thought to be bottomless.

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

400-year-old garden, restored to beauty.

A 16th-century artillery fort built to protect England against European invasion.

A open air theatre built on a cliff by an eccentric British woman.

These ornate arches show how the course of the River Thames has changed.

England's most famous front door has an accidental doppelganger.

This ancient Egyptian obelisk still bears the wounds of World War I.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

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

A clock designed to run with perfect accuracy for 10,000 years.

Charles Babbage's proto-computer, painstakingly brought to life.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

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.