Isaac Newton's former home, where the famous apple tree still stands.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

A blunder resulted in these charming stone-lined streams becoming the target of a Nazi bombing.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

An enigmatic natural rock formation with a manmade passage cut through the center.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

The undercroft is a spectacular example of medieval Cistercian architecture.

A curious urban windmill once owned by a renowned British mathematical physicist.

A memorial to American oil drillers who volunteered to travel secretly to England in 1943 and work in the U.K.'s only oil field.

This 600-year-old tower was built as a comfy residence for cherished pigeons.

A well preserved remnant of the English Civil War.

This English medieval castle is where King John died of dysentery.

The last working windmill in the U.K. that has eight sails.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.

These carved medieval "mercy seats" are among the finest in the world.

Once a palace for the Archbishop of York, these 15th-century ruins now serve as a haunt for history buffs.