These sculptures honor the knights who once called Carrickfergus Castle their stronghold.

Several land speed world records were shattered at this Welsh beach.

The only medieval bridge in Britain with its defensive tower still in tact.

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

His "Lionheart" is entombed separately from the rest of his body.

An ancient ossuary in Rouen.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

Northern Ireland's Brobdingnagian stepping stones.

This Roman arena once played host to bloody gladiatorial battles.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

This historic Victorian hotel has a scandalous history of affairs and murder.

A passage grave used in neolithic rituals.

These temples are among the oldest free-standing stone buildings in the world.

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This subterranean necropolis holds three floors of antler-dug grave caves.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

Follow the original medieval paths that wind through this intriguing section of the city.

The little-known second castle that William the Conqueror built in York.

WWII artifacts, including the building itself.