We used to live 3 hours from niagara falls. That place was always do fascinating. Especially before u had to have a passport to go there and 18 to legally drink! Also have seen chicen itza,Mexico climbed one of the pyramids too! Guess you can't do that anymore 4951
@FoFa: I put the bridge because I saw it on a list, I think industrial wonders. Not sure why Sears Tower isn't on it, I've been up there too. I'd like to see the sphinx.  4951