I can't believe I captured a honeybee (or any bee) so clearly in focus with my camera. :)
It's a Norway maple (Acer platanoides).
A better view of the flowers (and a worse view of the bee, alas). It looks like an old worker bee whose wings have seen better days.
Just the flowers and a fir tree in the background:
This is a school building with its yard, by the way.