 Prior to the outbreak of World War I the brothers completed a bank building and a neoclassical mansion in Moscow and two country churches in Russian Revival manner.Their most visible building of the period, Mantashev Stables on Khodynka Field, mixes Petrine Baroque with Russian Revival and Neoclassicism, yet is clearly apart from mainstream eclecticism.The actual stables were demolished in the 2000s; the central core still stands.