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

It's said to be one of the most significant collections of contemporary Chinese art in the world.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Visible from both land and sea.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

Most prolific publishing house in the 1600s open to the public.

This home on a quiet suburban street is completely covered with vibrant mosaics.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

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

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

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

It is against the law to obstruct the view from the top of this English burial mound.

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

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

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Graffiti covers the walls of a room where university students through the centuries have waited nervously to defend their theses.

The stunning interior of this Gothic church is covered in ornate gold details.

Grotto replete with mystical designs laid out in glued shell mosaics.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

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