Those Citibank trees are gorgeous
They are healthy; but regrettably, non-native, invasive Norway Maple. No pretty fall colours there.
This is a streetview of them from 2011, in October, bit smaller.
For the record, as there is no natural space close by, these are not trees I would advocate for removing until they become unhealthy. They probably have another 15-25 years left in them.
That's a tough corner for vegetation, so seeing those trees as large as they are speaks both to good planting conditions and toughness of Norway Maple.