Tekniska Högskolan Station was built in 1973 to facilitate access to the KTH Royal Institute of Technology (Kungliga Tekniska Högskolan). It won an award for its creative takes on scientific discoveries. Beyond the 5 regular polyhedra located on the platform, each representing one of Plato’s 5 elements (fire, water, air, earth, and ether) there are also representations of Copernican heliocentrism, Polhem’s mechanical alphabet, Newton’s 3 laws of motion, da Vinci’s attempts at creating a flying machine, etc.