An abandoned Yorkshire castle that is hidden in plain sight.

The pyramid-shaped grave of one of the first mountain astronomers and a pyramid theorist.

Inspired by the colossal pyramids at Giza, this 15-foot structure is believed to be the first funerary pyramid in Great Britain.

The ruins of a 19th-century corn mill are haunted by a malevolent cave-dwelling spirit.

This church is said to have connections to the Knights Templars.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

In the 9th-century this small spring-fed well became the location of daily mealtime miracles for one Saxon monk.

The last two abbots of this monastery were both executed by Henry VIII.

This curious Tudor-era castle was once home to Napoleon's greatest adversary, the Duke of Wellington.

It's believed a local adventurer spent 50 years living inside this cave.

Two beautiful Victorian-era parks replete with ornamental waterfalls and lakes.

Cycle, walk, or run up and down on an old historic railway path.

A well preserved remnant of the English Civil War.

This iconic building was founded as a school for the impoverished, but became one for the sons of the local gentry.

A 19th century grave house with a unique message formed by the stone supports to the railing around the walls.

When King Oswald was killed in battle, an eagle dropped his arm here creating a new spring.

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

Parts of this former military training ground may have inspired parts of J.R.R. Tolkien's famous fantasy series.

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

The last fully working Victorian Turkish bath in England.

A rocky outcrop where monks hid their most holy relic while escaping Danish invaders.

The church and nearby castle are all that remains of a medieval village, mysteriously abandoned.

A sense of bewilderment encounters visitors when they happen upon this former railway bridge.

This Tudor-era castle was once part of King Henry VIII's plan to protect England from invasion.