The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

The Columbia Road Flower Market is now open every Sunday, rain or shine.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Historic Hull Street was actually the first street with a proper name in the Boston area.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The Boston square dedicated to the dark poet who was born nearby.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Golden Gate Park's historic collection of plants.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.