To make it even more useful, store name/city can be bubbled on hover on dot. But since the stores can be very concentrated at the end, one or combination of the

To make it even more useful, store name/city can be bubbled on hover on dot. But since the stores can be very concentrated at the end, one or combination of the following can to be done: - combine dots into larger dots, and/or with different colors, or 3D-ize them if they touch one another. - magnify europe into empty ocean space. - scale map according to screen width.