Help Requested - Tallest U/C in Each State

[tone99loc]

Hi,

I'd like to make a map of the US (Canadian provinces are cool too) showing the tallest building under construction in each state. My idea is to use a color coded Google Map template (eg. states shaded green have a tallest u/c that's 1,000 ft or higher, red for 750-999 ft etc.) and allow for the user to click through for more details on each project.

Questions: Does this map already exist somewhere?

If not, what's the easiest way to get all the tallest u/c by state/province data?

Thanks!