You can climb to the top of Mt. Constitution, there's a trail. Though, it's rather dispiriting to get to the top and be greeted by folks in slippers and sweatpants.
The last time I was at the Met (July 2012), the woman at the ticket counter kept telling me over and over that I didn't need to pay the full price for admission, as it was only suggested. I'm sure I looked a little hungover and ruffled, but not that rough.
Reading John Corvino in college gave me so many great arguments to bring to the table when confronted by homophobic relatives and friends. It is wonderful to see this - thank you, Dan!