A line number in Amsterdam that will likely never be used again due to its tragic history.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Europe's official "zero-level," the equator of elevation.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Lumps of significant stone from around the world surround a flaming monument for peace.

This 19th-century fountain's namesake animal isn't what you think it is.

Marvel at this immense work of art that greets arrivals to the city.

This beautiful spit of land was once the summer playground of the king of Spain.

This bare, bronze lad in a lone sock sits in the middle of Loughborough’s town center.

An obscure walkway dedicated to a scientist who helped pave the way for the world to sit up and take notice of Manchester.

When the city of Manchester built a new centralized heating network, they did it with style.

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

Have a seat with the father of modern computing at this Manchester monument.

Manchester's abandoned train depot lingers in a post-industrial purgatory.

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.

Dedicated to the legendary comedian Eric Morecambe depicting his iconic "Bring Me Sunshine" stance.

The secret medieval communication system will whisk your words above the noise of the crowd.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

One of three sites in England that house the National Collection of Arms and Armour.

The bizarre headgear looks like it was made for a fool, not a king.

Modern art commemorates one of the first military actions of World War II.

One of the world's largest amber altarpieces is housed within this reconstructed medieval church.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.