Underground city XXI is a European multidisciplinary platform. It is an ongoing artistic project, involving
3d artists, multimedia professionals, scientists, etc. Its ambition is to build an online community based
in a 3d space, a visualization of a famous former mine in Labin, Croatia.Due to developing and dynamic
nature of the project, which tends to change its focus, evolve and find new perspectives, a dynamic
solution was developed, where there is no fixed logo, and grid ia a central element of the identity.