This ornate English estates "Prodigy House" still bears the cannonball marks of civil war.

This astronomical clock is the second oldest in England.

Three bridges straddle a stream, one stacked upon the other.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

Hidden in plain sight, this creepy sculpture watches from above.

A locomotive made from 185,000 bricks celebrates the town's pioneering railway history.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

This unique sculptural clock transforms into a periscope every hour.

The sculpture of the deceased cockatoo flops atop its personal plinth.

A giant scrawl on the skyline of south London.

This sculpture pays homage to Shakespeare and his reference to a Manningtree tradition.

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

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

This hidden green space is the city's second largest conservatory.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Hidden beneath the streets of London is a secret subway that only carried mail.