We map where sales are taking place around the world - we slightly fudge the data to avoid any security implication for the sellers, but to give a good idea of distribution.
N.B. points on this map have been moved randomly up to 4 miles away to avoid identifying specific houses. Locations will therefore change slightly in the source code and are deliberately not accurate. The map you see will only zoom into a specific level to also avoid specifying precise houses / locations of sale - it provides enough information to give an idea of sales distribution.