Here sights of St.Petersburg & Leningrad region are sorted by surnames of their creators (architects, sculptors, landscape designers) in alphabetic order. Of course this list can not be comprehensive and it will become much longer.
Note that there are some sights that were erected (rearranged, rebuilt, restored) by several architects. So not every first picture of article relates to the creator, for exact information please read the article.
There are more ways of sorting sights in my guide book: