The plunge pool is a surviving relic of a rowdy royal residence.

This historic building displays the remains of a victim of the devastating 14th-century plague.

A reportedly haunted 14th century church is curiously facing the “wrong direction.”

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

The commemorative stone column conceals a secret laboratory.

A brick foundation and piles of listing building materials are all that remains of this World War II POW camp.

The abandoned transportation hub hides within the Glasgow attraction it once served.

This grave resides at the crossroad of three parishes.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

Gothic tower where Lord Alfred Tennyson wrote the poem "The Sleeping Beauty."

A group of glacial erratic boulders are improbably balanced on white limestone pedestals.

Ancient human remains unearthed around the iconic monument.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

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

The dramatic remains of an abandoned farmhouse sit high on the edge of a remote hillside.

The oldest residential street in Europe also features an optical illusion.

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

Eighteenth-century home, where Herschel discovered the planet Uranus.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

The collection contains over 25,000 items and details the painful dental practices of the past.