High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The video game-themed street art first popped up in the French city.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

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

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

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

An unlikely connection between a little English town and the most famous brand of American motorcycles.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

One of several Lilliputian portals that are ready to transport passengers to other dimensions, if they can find them.

An ordinary lamppost situated in the middle of Cambridge has an unusual moniker and history.

The historic villages and towns of Suffolk are filled with wonky wooden beam houses painted an unusual shade of pink. Unknown to many though, this sweet shade has a bloody history.

This medieval castle is filled with an eccentric collection that ranges from ancient Egyptian artifacts to taxidermy to a mummified hand that was cut off during a duel.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

Tourists who rely on a transit map to find the iconic Beatles location often end up in a far-off neighborhood.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

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

Murals of the wild parties once held on the frozen River Thames.

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

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

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.