If you're looking to cool off as the weather heats up and defy gravity at the same time, I know a place in Missouri that maybe should be on your must-visit list. Many who go there jump off the rock cliffs and there's also a natural waterslide.
You've likely seen your share of lightning and probably a lot of rainbows. But, I doubt you've ever seen lightning strike inside of a double rainbow and that's exactly what happened during a Midwest thunderstorm. Oh, and it happened on Friday the 13th.