Grand Central is big and beautiful and it also periodically hosts free cultural events - poets at typewriters custom-composing poems on demand - or Alvin Ailey dancers performing in Artist, Nick Cave's horse suits!
This park holds a special place in my heart because it has been like a backyard for me over the years. It is also named after the Secretary of State who negotiated the purchase of Alaska. There is even a Togo sculpture that reminds me of home. The bench strip doubles as a downtown runway.
The Frank Stella's are the best. They are all over the city and they always look amazing. Two of my favorites are the Saatchi and Saatchi lobby (pictured) and the Citi Corp building in Midtown.