These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

This one has sailed five times as far as Sir Francis Drake's famous ship.

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

An incarceration museum on the spot of possibly the oldest prison in England.

The site of London’s first coffee house has been serving refreshments of one kind or another for 360 years.

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

An ordinary pond with fish from out of this world.

It would take you approximately an hour and a half to walk to the end of Mexico's largest pier.

A wall of chewing gum moonlights as collective art.

The man who is mainly remembered for a chicken dish he had nothing to do with is buried under a large concrete dome.

The best place for scenic views of the DMZ and North Korea.

An architectural oddity hides in plain sight on this iconic London bridge.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A fruit-loving town welcomes visitors with a giant melon set against the sky.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

The second oldest continuously operating bar in Louisiana.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The western face was supposedly left clock-less to snub the Welsh.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.