There are a series of homes in Nags Head, NC (OBX/Outerbanks) that have ended up being condemned and abandoned due to a rising tide thanks to years of storms which caused beach erosion. It's a pretty cool sight (and site, I guess).
Kind of sad. I grew up in Raleigh and we used to go to Nag's Head each summer for vacation. We used to stay in Sadler's Cottages, right across the street from Jockey's Ridge.