-The light show at Macy's. It's a lot of bulbs, that light up to make pictures of things like snowflakes and Christmas trees, and which coordinates to music. It's not super-fancy, but it's quite fun to do your shopping with this going on in the background. I feel like I'm in "Miracle on 34th Street" or something.
-The Dicken's Village at Macy's. Greg will be angry that I'm making fun of this, and it truly is a cool thing to take kids to. It's free, for one thing. Macy's partitions off a big section and sets up a Dickensian village that you can walk through and experience "A Christmas Carol." Very cool. But, if you're just shopping, the high school theater geeks* trying out their (sorry, bad) British accents and yelling, "Oy, Dickens village over 'ere, guvnah," is, like, hella annoying.
-The Comcast center's Christmas Spectacular. The Comcast center has the largest LED screen IN THE WORLD. It's gigantic, and very cool to look at even when there's not a Christmas Spectacular going on. Oddly enough, I found it the coolest when it mimicked the interior of the lobby, so that if you were just passing by, you'd have no idea it was a screen at all. The actual Spectacular was neat, but lacked the charm of the Macy's light show. I don't need to see the Nutcracker's pores, thank you very much.
-Santa's village at City Hall. Ripoff! A bunch of huts full of people trying to sell you unnecessary tchotchkes. With really loud German music playing. Everything else I've listed is basically free, and there are enough people trying to sell you stuff at Christmas anyway.
*I was one of these, so I'm allowed to make fun.