What I was envisioning with my proposal from earlier today was to continue using easily-identifiable landmarks for the cities which have iconic structures (Paris, Berlin, etc.), supplemented by “nationally identifiable” structures for the remaining cities that have no obvious high-recognition buildings. Every VC would have a unique marker (which is a big part of the appeal of your project. So we’d end up with something roughly like this:
VCs with city-specific iconic structures or high-recognition topography:
Berlin : Brandenburg Gate
Cairo : Giza Necropolis
Honolulu : Pearl Harbor (Ford Island and Battleship Row)
Leningrad : Winter Palace
London : Big Ben/Parliament
Moscow : Kremlin and St. Basil’s Cathedral
Ottawa : Parliament Centre Block with Peace Tower
Paris : Eiffel Tower
Rome : Colosseum
San Francisco : Golden Gate Bridge (set in S.F Bay)
Sydney : Sydney Harbour Bridge
Tokyo : Torii (from Meiji Shrine)
Washington : Capitol Building and Washington Monument
VCs with buildings in nationally-recognizable styles:
Stalingrad (?) [needs to contrast with Moscow and Leningrad]
Calcutta (Hindu temple?) [Dakshineswar Kali Temple might work.]
Hong Kong (Pagoda-style building? Must contrast with Shanghai.) [Main Altar of the Wong Tai Sin Temple might work.]
Shanghai (Pagoda-style building? Must contrast with Hong Kong.) [Yu Garden’s Dianchun Hall might work.]
Manila (?)
Warsaw (Eastern-style church?) [Church of the Assumption of the Virgin Mary and of St. Joseph might work.]