This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Sip cherry liqueur at a bar dating back to 1840.

This window celebrates the role of tea, coffee, cocoa, and cotton in creating the fortune of the man who commissioned it.

This round structure dotted with portals is one of several pieces scattered throughout Lancashire.

At this snack-shack in the bucolic British countryside, you can still get a slice of socialism with your spot of tea.

This giant weaving shuttle celebrates Lancashire's importance during the Industrial Revolution.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

The oldest working Brewery in Britain.

In a small courtyard resides this large mural that draws inspiration from Leeds and its history.

This sculpture of Edward of Woodstock is surrounded by eight Victorian lamp bearers.

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

Britain’s highest medieval monastery is a remote ruin nestled at the head of a valley 1,240 feet above the sea.

Artists have long been drawn to these atmospheric 12th-century ruins.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The red letters in the literary pavement leading to the library form a mysterious code.

19th century tunnels burrowed under Liverpool.

This bronze statue was dedicated to a 1966 Beatles hit.

This aging storage facility is the world's largest brick warehouse.

This sculpture celebrates a boules tournament and the link between Leeds and its twin city Lille.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A curious cave church carved into the face of a cliff.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

Once a safe haven for locals engaged in blood feuds, this 400-year-old fortified tower is now a museum showing what life was like for those lying in wait within its walls.

The encased skull that is widely believed to belong to St. John the Baptist.