The last four extravagant street signs of London's historic banking street.

The remains of the great moral philosopher reside in a university in London.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Two plaques commemorate the site of Shakespeare's first theatre.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Giant, friendly pelicans in Central London, the most unlikely of places.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

This stack of stones honors a murdered 18th-century woman.

An American ghost town hides along a side street in Scotland's capital.

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

The final resting place of soldiers' loyal canine companions.

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

Modern sundial uses ancient methods to tell time and date perfectly.

Though they've since been renamed, these two streets hint at Dublin's darker days.

The largest portal tomb in Europe has a capstone weighing around 150 tons.

A standing relief of a Norman knight whose posture marks him as a Crusader.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.