Sao Paulo is a great city. This are the landmarks on this ring: Teatro Minicipal Sao Paulo, De Oliveira bridge, the hand monument, Mercado de Sao Paulo, a Carnival mask, Iberapuera park monument to the flags and the Sao Paulo cathedral.
More Skyline - Cityscape rings
here.
Please contact me, if you like another size and/or material and/or have other ideas.
Please double check your size. It is important, because these rings are pretty tall (aprox 12mm high) and maybe feels tighter then the usual rings.