When walking through Stockholm’s central station visitors will see a beautiful amalgamation of modern and 18th-century architecture. Parts of the station are kept in their original state, while others are modernized or decorated with art. These art pieces are sometimes more elaborate than one might imagine, such as this hidden weather display by Bigert & Bergström.

“Morgondagens Väder,” which means ‘Tomorrow’s Weather,” is an abstract representation of Sweden by means of a cluster of “hanging atmospheric molecules.” Each of these molecules is connected to a weather station via the internet and changes color based on the predicted weather.

A large molecule in the center represents the temperature, with blue representing cold and red illustrating hot. The molecules together represent the future, and their base represents the past as sedimentary rocks.