The same just started happening to me. I had a dream of this big pavilion that I didn't know it was a pavilion. It was exactly the same structure and same design as the one I found out to exist but I've never had seen it in my life. Not even in movies. In my dream I was walking just next to it and it seemed so real. I had this dream months ago and I just found out from a film trailer that it was the Bondi Pavilion in Australia and I live in the UK and never seen it in my life. I've also had dreams where I saw a church in between a cross road and happened to actually see it in real life passing by. It was like I had a deja vu.