So what's up with the purple haze spreading across South Florida's cityscapes?

It's part of Paint the Town Purple, featuring temporary makeovers for some of our well-loved landmarks. The campaign, launched by the Southeast Florida chapter of the Alzheimer's Association on Friday, aims to raise awareness and research dollars to combat the devasting neurological disorder affecting more than half a million Floridians.

There are more than 20 royal-shaded buildings or places in six of the seven counties covered by the Southeast chapter. Among those nearby: the Bank of America stair-stepped office tower and the fountain in Huizenga Park, both in downtown Fort Lauderdale. The fountain in Boca Raton's Mizner Park. The Wellington clock tower.