A little slice of Japan and its aesthetics in London's Holland Park.

This home on a quiet suburban street is completely covered with vibrant mosaics.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This secluded walkway overlooks a magnificently wild London green space.

A mysterious bridge over a sunken Roman road.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

Each spring this woodland floor is carpeted with purplish flowers as far as the eye can see.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

Nestled atop a wind-swept crag in the Scottish Highlands is a lonely memorial to a beloved hiker.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

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

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

A quaint hamlet of nine cottages around a small green near Blaise castle.

There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

Quirky Welsh observatory unites art and science.

Several land speed world records were shattered at this Welsh beach.