Prospect Heights is a mixture of architectural styles, some brownstone lined blocks, some beautiful pre-war apartment buildings, some absolutely hideous stuff built between the 60's and the 90's, and the glass and retro look of the stuff that is being built now. Unlike Park Slope, there are more apartment buildings than brownstones. Other than the big avenues: Flatbush, Washington, Vanderbilt, Atlantic and Eastern Parkway, the streets tend to be quiet, with curb parking. It is very green, lots of old trees and window boxes. There aren't really any lawns to speak of, though some of the brownstones have tiny gardens in front or back. Most of the architecture has a victorian or belle epoque feel to it.