Downtown Achievement City is considered the heart of the City and is also the main hub of the activities in the City. Downtown Achievement City was one of the first set of structures built by Gavin and Geoff which reportedly took 20 hours to build. (Although most of these were spent building Geoff's house). It was decided that each core member of the Achievement Hunter staff would have a place, mimicking themselves which they would call home. After starting up the Tower of Pimps challenges in Episode 10, an Obsidian (or in case of Ray's, dirt) block is permanently placed outside their houses to erect the Tower when a person wins challenge. These houses were later expanded to include hidden contraptions or griefing mechanisms that would annoy the householder, which were later shown on the T