The final resting place of soldiers' loyal canine companions.

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

Now home to a drinking establishment, this building has a macabre history.

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

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

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

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

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

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

This demon atop the Notre-Dame de Paris looks utterly bored.

The celebrated eyesore created by starry-eyed sweethearts.

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

The site of slaughterhouses that once satisfied Parisians' taste for horse meat is now home to a park and book market.

The site where two doves fell in love.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

A tribute shrine where the Space Invasion street art movement started.

This small, ingenious cannon once helped regulate Parisian life.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

What looks like a normal building is really a hollow facade hiding a subway vent.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

Fighting the British and making game shows for over 150 years.