Thanks for the compliments on the pictures!
Boston's main downtown cluster looks like a bunch of buildings around the same height because it mostly is. The top 5 are all between 590-614 feet, creating a sort of plateau, and then this is filled in by a bevy of 400-500 footers (and obviously tons of infill).
As for where to go and what to see... well for starters since this sight is mostly skyscraper fans, there is the Prudential Tower observation deck and then the more obscurely known (but FREE!!!) observation deck in the Marriott Custom House (the tall clocktower by fanueil hall). It's free everyday, except you can only go at 2:00 and I'm not sure if it's open Sundays.
Make sure you check out the common, gardens, and definitely the esplanade for a possible free concert. The freedom trail is good for touristy stuff. Most of the main museums/atttractions such as the science museum, art museum, aquarium, etc are all above par.
Also a good bet is to go to Cambridge, with a funky urban scene across the river and a really nice area around Harvard.
I know there is a lot of good nightlife and food around BU, plus their dining halls are actually run by chefs so that isn't a bad option either. Make sure you hit the North End if you enjoy quality Italian Food. My favorite place personally is Pizzeria Regina, the cheese is to die for!
Not to water down the thread too much, but here are a couple pictures from this weekend.
and this last one courtesy of my roommate hanging out the window