The oldest inn in England served brew to the crusaders.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

One of the shortest streets in York has an especially odd name.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

This disused Cold War bunker has been restored to all of its early 60s glory.

Follow the original medieval paths that wind through this intriguing section of the city.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A hands-off space for graffiti artists to hone and display their skills.

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

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

What looks like missing grout is actually an old pub's peephole.

This grounded passenger jet is now a restaurant, complete with rows of seats and “flight attendant” servers.

Where thousands of slaves passed through the "Door of No Return."

This Cold War siren is one off the last of its kind still standing with its immensely powerful original horn.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

An ever-evolving wall of graffiti art off East Liberty Street.

This historic hotel invented the chocolate brownie.

Internationally known record store and purveyor of "dusties."

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.