Constantly maintained, this organ is playing a six-century long composition by John Cage.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

A modern mechanical planetary system, part of a 10,000 year clock.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Once a train station along the Great Eastern Railway this vibrant coffee shop and bar is where members of London’s creative class mingle.

The last of the 19th-century booze-free bars has been slinging teetotal tonics for over a century.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A preserved block of timber buildings from the city's industrial era in the Middle Ages.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

This 15th century pub is one of only two pubs in England situated on consecrated ground.

The smallest pub in Britain was once a cabinet of curiosities and it still has the dead cat to prove it.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

A friendly pub with a sordid past in cock fighting.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

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

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

The oldest inn in England served brew to the crusaders.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A strange house built only at night, with rumored mystic inspiration.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A one-of-a-kind collection of a unique medium.