This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

360° views of the city plus five floors of optical illusions and hands-on science.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

This 16th-century house tells the city's history through old artifacts and quirky tales.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

This small museum in a 17th-century building honors three iconic Scottish writers.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

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

Protecting the dead from opportunistic body snatchers.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A sweet symbol marks the place where torturous executions were once carried out.

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

The final resting place of soldiers' loyal canine companions.

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 oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A giant wooden soda bottle pays homage to a distinctly British drink on the very spot where it was invented.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

A vast Communist-era exhibition space in the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

A flamboyant five-story building in Bulgaria resembles a crawling snail.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.