A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

Largest lake in Great Britain measured by surface area.

The highest lighthouse in Scotland shines from an abandoned island.

Memorial to the Titanic engineers that died working to hold back the sea.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

A scattered trail of street art adds a pop of color to the city's stark structures.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

The final resting place of the famous Rhode Island lighthouse keeper who heroically saved dozens of people from drowning.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

This abandoned Greek island was the last active leper colony in Europe.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

The island residents are known for taking their quirky sense of humor with them to the grave.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

Scientists use one of the saltiest bodies of water on Earth as a terrestrial base for studying water on Mars.

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

The attic and basement house two museums stuffed with oddities like swallowed spoon handles and a shrunken head.