This medieval manor house was equipped with secret compartments for hiding priests.

The Great Fire of London and the regulation of one-way streets both started in this alley.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

Hidden beneath the streets of London is a secret subway that only carried mail.

Rebuilt remains of a temple to Roman god Mithras.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Hear the quietest sound from across the dome.

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

A network of bells in the pubs and restaurants around Westminster alerts politicians when it's time to cast their votes.

A painted tribute to an ancient Egyptian king lurks along a stretch of Scottish shore.

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

These fantastically named natural pools look like something out of a Scottish myth.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

Enter the world under the hill at this ancient UK burial chamber.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.