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

The final resting place of soldiers' loyal canine companions.

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

A six-ton wedding present for the King of the Scots.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

Experience what life was like in Ireland during the Viking and medieval ages.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

There aren't too many operational funiculars around, but Pittsburgh has two!

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The same security that protects our nukes accidentally protected a gentle herd of antelope.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

2300-year-old Roman road connecting the empire.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

English parliaments were once convened by this ancient oak tree in the heart of Sherwood Forest.