This plaque marks the former home of one of the first women physicians in the Netherlands.

Believed to be the former location of one of the earliest Viking assemblies in Europe.

This Victorian water wheel is affectionately nicknamed "Little Isabella."

This unique rock formation has become a popular walking trail.

This concrete memorial commemorates a group of brave locals who saved the crew and passengers of a wrecked ship.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above the Arctic Circle.

One of the oldest lighthouses in the world has been in continuous use since it was first built in 1531.

On the southwestern tip of the Isle of Man, a stone monument to one of the island's great conservationists.

Tourists who rely on a transit map to find the iconic Beatles location often end up in a far-off neighborhood.

An ornate doorway leads to the former site of one of the city's oldest society of merchants.

Preserved behind glass, the ruins of a medieval building used to store human remains.

If you fly into Edinburgh Airport, it's possible to spot this prehistoric site without even getting off the plane.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

According to legend, this tomb holds the secrets to time travel.

Winner of the Leeds Award for Architecture and the Environment.

King of the Saxons on top, Roman goddess of wisdom on the bottom.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.