This museum is one of the city's art-nouveau treasures. Designed by Fyodor Shektel, it boasts the most extraordinary staircase in the city, as well as the personal belongings of the modern Soviet author Maxim Gorky, who lived there. Open Wednesday-Sunday 11 am-6 pm. Closed the last Friday of the month. Under renovation; call for up-to-date details. Free. Ulitsa Malaya Nikitskaya 6/2 (near Pushkinskaya/Chekhovskaya metro stop, just off the Boulevard Ring), Moscow. Phone 495-290-0535.