Gozaic - Historic Travel Site

Ok, so I clicked on an advertisement the other day.  I normally don't but I am glad I did.  I found Gozaic (http://www.gozaic.com/).  If is created and maintained by "Heritage Travel, Inc. a for-profit subsidiary of the National Trust for Historic Preservation is the company behind Gozaic, the dynamic online travel community where people find and share heritage- and culture-rich experiences. The mission of Heritage Travel, Inc. is to present travelers with a broad range of heritage destinations, sites and events that define our collective past and enrich our lives – and help them connect through places that matter."  I have just begun exploring it but if you are into traveling to historic places, this is a must visit.