> No buildings are numbered zero > Counterexample: 0 Egmont Road, Middlesbrough, TS4 2HT A more fun counterexample: the Black History Museum in Richmond Virgin

> No buildings are numbered zero > Counterexample: 0 Egmont Road, Middlesbrough, TS4 2HT A more fun counterexample: the Black History Museum in Richmond Virginia is located at "00 Clay Street". That's 00, not 0.