This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

The fountain marks the area where hundreds of accused witches were burned at the stake.

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

Rebuilt remains of a temple to Roman god Mithras.

An incarceration museum on the spot of possibly the oldest prison in England.

Poetic, metallic giraffes adorn a square off an Edinburgh thoroughfare.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

Protecting the dead from opportunistic body snatchers.

The most loyal of little dogs, or a Victorian era publicity stunt?

Possibly the world's smallest museum is home to one exhibit that sheds light on the capital city's dark criminal history.

This early version of the guillotine was used to execute the man responsible for its construction.

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

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

London's smallest police station is barely the size of a phone booth.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

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

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

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

The commemorative stone column conceals a secret laboratory.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.