The former "holiday home" for monks at the Durham Cathedral.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

This unusual sculpture is sometimes partially, sometimes fully, submerged.

A 2,000-ton rock resting in a state of a delicate balance.

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

This disused Cold War bunker has been restored to all of its early 60s glory.

Once a farm where patients tilled the soil, this asylum lost its workforce when overmedicating became common practice.

Stonehenge has nothing on Castlerigg’s views.

This small village museum contains the schoolboy scratchings of William Wordsworth.

This charming English house was once the home of England's most famous poet.

These legendary stone steps were once used to haul coffins up the rockface.

Harry Potter’s Hogsmeade Station is also a charming blast from the past situated in North Yorkshire.

Where Agatha Christie mysteriously disappeared in 1926.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

Two minuscule windows are tucked inside this medieval building.

Astonishing rock formations dot the Brimham Moor landscape.

A giant piece of cutlery designed to remind us about the origins of our food.

This historic castle was already in ruins by the 13th century.

Legend says squeezing into this slender stone seat will make your wish come true.

An impressive Neolithic henge with banks nearly 10 feet high.

Though this large circular site is now named for the legendary king, its history dates back to the Neolithic era.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.