Utropiia has grown through accretion, with new buildings built on the old, and it is frequent to find older constructions or even entire streets encased inside gleaming modern structures, like entombed remnants of the past.

These old streets, effectively transformed in tunnels, twist and turn within the massive newer Utropiian buildings. They are completely invisible from the outside, yet still house shops and restaurants and are full of urban life. They make for delightful strolls; just a few steps away from the bustling avenues one feels as in a different world, quaint and personal once again.

The old shopkeepers are happy to chat, opening with their life stories a window onto a Utropiian way of life that is vanishing.