Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

One of the few surviving street funiculars in the world.

The castle still holds traces of the abandoned Roman fort it was built atop.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

An architectural oddity hides in plain sight on this iconic London bridge.

This mysterious and unique painting is filled with symbolism.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

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

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

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

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

These morbid carvings remind churchgoers of the inevitability of death.

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

Historical etchings such as “Miserable, wild, distracted 1350" and “The Archdeacon is an ass.”

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

Rare and wonderfully wormy cadaver art captured in brass for centuries.

A complicated contraption for telling time by the moon.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.