The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Step inside Lucy, the world's largest "elephant."

The Lowcountry color with the power to stop evil from entering a home.

A statue honoring 44 continuous years of greeting passing ships.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

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

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

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

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

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 final resting place of soldiers' loyal canine companions.

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

One of Ireland's most infamous prisons for rebels including men, women and children.

Climb to the top of the world's largest seated bronze Buddha.

A place to see how French aristocrats lived in the early 1900s.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Its collection includes a broad array of social, geographic, graphic design, and political history.

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

The Tudor-style cottage in the middle of the square is not quite what it seems.

Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

Explore nearly 400 years of English middle-class home life.