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

Rebuilt remains of a temple to Roman god Mithras.

Hear the quietest sound from across the dome.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

An unusual round church in London with a Templar past.

The most loyal of little dogs, or a Victorian era publicity stunt?

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A sweet symbol marks the place where torturous executions were once carried out.

Protecting the dead from opportunistic body snatchers.

The final resting place of soldiers' loyal canine companions.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

Try not to get slimed in Tribeca.

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

The celebrated eyesore created by starry-eyed sweethearts.

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

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

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

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Eighty million natural history specimens call this gargantuan museum home.

London's smallest police station is barely the size of a phone booth.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.