The oldest housing complex in Riga is a mini timeline of architectural trends.

Be on the lookout for the symbolic insect all over the city.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

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

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Robots, lasers, and whoopee cushions, oh my!

This icon of the Atomic Age now lays dormant.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

Experience what life was like in Ireland during the Viking and medieval ages.

Sofia's legislative center is continuously reinventing itself.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

This grubby wall is said to be one of the Earth's esoteric energy centers.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

A memorial to the beloved brown bear that served in the Polish army during World War II.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.