Ahh! Callery and bradford pears. There's a callery/capital pear tree abutting the street in front of my house. Its foliage is lovely-- right now it's the only tree on the block still holding onto its yellow leaves; the rest of the boulevard trees are maples and have long since dropped their leaves. However, the blossoms in spring... ugh! They're ubiquitous and pretty, but they smell like a dead, rotting animal. So I tend to hate parking the car by the tree because I have to walk through a wall of that smell to get to the house.