The golden bulbs draw your eyes as you enter rue Pierre-le-Grand from boulevard de Courcelles. Built in 1860, the interior in the shape of a Greek Cross is decorated with frescoes, gilding and icons. If you have the opportunity, you should attend the magnificent services representative of «Holy Russia»... . This is not a place where you expect to tread in the footsteps of Picasso but he married Olga Khoklova here in 1918 with Diaghilev, Cocteau and Apollinaire as witnesses.