It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Stockholm's deepest subway station is also a stunning ecological wonder.

The library's graceful rotunda is like a bibliophile's temple.

It houses the remains of a 17th-century version of the Titanic.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

A scattered trail of street art adds a pop of color to the city's stark structures.

A century-old tradition has culminated in a small but singular collection of feline effigies.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Traveling collection of amazing automata.

England's most notorious suicide spot.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

This toxic spoil heap found a second life as a ski slope, popular film location, and wildlife haven.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

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

Putting the "mod" in "modular" since 2000.

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

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

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

Decrepit Victorian public lift is a white-knuckle ride.

Regency-era excess on the English Coast.

The oldest working mechanical clock in the world.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

The world's oldest operational public pier railway has shuttled seagoing commuters from ship to shore since 1909.