Brooklyn Heights, west of Cadman Plaza, embodies America's affluent middle classes of yesteryear. Busy near the bridge, the district is riddled with tree-lined streets and rows of dark sandstone brownstones. The long promenade over the Brooklyn-Queens expressway and above the river commands a splendid view of Lower Manhattan's skyscrapers. On land, you will walk past the gardens of wealthy homes. The New York Transit Museum will appeal to transport and technology fans.