Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

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

Famously misunderstood wonder of the ancient world

One of the oldest remaining Catholic churches in England is home to the hand of a 7th-century saint.

Some of the earliest leaders of the Moravian congregation are buried here.

One of London's oldest houses contains a mixture of both old and modern features.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

A mineral spring that became all the rage in 17th-century England.

Murals of the wild parties once held on the frozen River Thames.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

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.

The commemorative stone column conceals a secret laboratory.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

Where condemned pirates met their grisly end at the gallows on the River Thames.

A Roman spa buried deep beneath the City of London.

A naturally mummified 2,000-year-old man.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.