An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

Believed to be the birthplace of the United States Marine Corps.

Believed to be an execution site used by King Arthur after he was embarrassed.

A funerary monument for two brothers who served in the Roman cavalry.

The only statue ever crafted by award-winning animator Ray Harryhausen.

A dozen cast iron leopards stand guard along the length of Aberdeen's Union Bridge.

Once an early Christian burial site, it's believed the location was home to around 200 gravestones.

This colorful mosaic remembers one of Britain's most deadly peacetime fires.

It's believed this well was once plagued with evil spirits until St. Columba purified the water.

The oldest church in Inverness witnessed the brutal executions of many Scottish soldiers.

The final resting place of a poisoned lover whose death was at the center of one of Glasgow's most sensational murder trials.

In September 1974, a small group of athletes completed the first modern triathlon event in San Diego's Mission Bay.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

After 800 years, Europe's oldest elm tree has met its end.

This small memorial honors a ferocious feline and local hero.

Cut into a sheer cliff face, these stairs are the only way to reach a secluded Scottish harbor.

Some believe that the stone once used to coronate Scottish kings resides inside this bar.

This exhibit showcases the literary work of soldiers who suffered "shell shock" during World War I.

A plaque commemorates a Victorian scientist's monumental discovery about waves.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

A town's history displayed through a massive work of art.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

This massive work of art was designed to commemorate Burns Night and the national poet of Scotland.

In this tiny museum, an unusually-shaped skull that some claim as evidence of extraterrestrials.