The mission is housed in historical Ponizovsky House , designed by Lev Kekushev .
Mission 's exterior was later radically altered and does not display signs Lev Kekushev Kekushev 's Art Nouveau style .
The mission is housed in historical Ponizovsky House , designed by Lev Kekushev , although its exterior was later radically altered and does not display signs of Kekushev 's Art Nouveau style .