Is that ever neat! I've always loved Legos and had them as a kid, and have considered getting back into them as a "hobby" (in quotation marks because, let's face it, I'd be playing with them and "grown-ups" aren't suppose to "play," so we call it having a "hobby" instead). At Chicago O'Hare, they use to have a Lego play area for kids (don't know if they still do because I haven't flown through that airport for several years now) and it contained a to-scale Lego model of the Sears Tower that was even illuminated from inside.
By the way, that Lego Lyndhurst looks more realistic than that eclectic model of Collinwood used for the '91 series (I always waited, during the opening credits, for a guy in a Godzilla suit to come and stomp on it). Maybe the set designers should have used Legos instead.
Gerard