Nature took her revenge on the "Wickedest City in the World."

Cavernous opening completely encased in Karst limestone.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

Before firefighters, villagers relied on this simple hook to save their thatched cottages from a fiery doom.

The largest stone circle in Ireland.

It's believed a castle existed at this site since the 12th century.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Look up from the busy streets to discover how time is kept!

This mysterious pyramid is said to be part of a complex web of occult and Freemason symbols.

An archway adorned with vulnerable flora and fauna.

Inside a London bookstore, a fireplace that once belonged to the illustrator responsible for a famous set of tarot cards.

Heralded as the oldest statue in London.

This life-size monument honors the legacy of a famous literary feline.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

This medieval church tower has maintained its clockworks since the 16th century.

The bronze uniforms commemorate the vital role of women during World War II.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

The London statue that imitates passersby.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

This educational institution and reference library specialize in the psychic arts and mediumship.

England's most famous front door has an accidental doppelganger.