Marie Antoinette and Napoleon Bonaparte were fans of this 200-year-old French chocolatier.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

The celebrated eyesore created by starry-eyed sweethearts.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The narrowest street in Paris.

This ancient abbey now lies in majestic ruin behind a caravan park.

The longest and tallest aqueduct in Britain can actually be sailed across.

A small village in two different countries.

When King Oswald was killed in battle, an eagle dropped his arm here creating a new spring.

A quiet country churchyard holds a monument to the last known sin-eater in England.

The oldest working Brewery in Britain.

A replica of one of the most complete mammoth skeletons discovered in England.

This historic abandoned train station looks like a stop for ghost trains.

A hidden gem in the middle of the city's infamous Jewelry Quarter.

An ancient woodland that inspired a young J.R.R. Tolkien.

This ingenious engineering solution was built to stop the "theft" of canal water.

The remains of what was once a motte-and-bailey castle, these earthworks offer visitors a tangible connection to England’s medieval past.

A lost World War II military camp and post-war suburb swallowed by the woods.

Beside the pew where C.S. Lewis often sat while attending church, a window filled with characters from his beloved stories.

A famous burial ground with a history both grim and literary.

This may be the last of London's wooden pavements, which were once a common sight in the city.