Construction of the building was complete in 1890; the interiors were finished by 1892. A work of art in their own right, the interiors were designed as a harmonious environment in which to display the Havemeyers collections of Asian art, Islamic pottery, Dutch and Impressionist paintings. Tiffany and Colman designed every detail of the interior and its furnishings. They were inspired by the exotic cultures of the Near and Far East. Each room was thematically unique and covered with sumptuous materials, such as embroidered silks and Tiffany-designed glass tiles. Many of the materials used, including in the leaded-glass windows, light fixtures, mosaics and balustrades. were fabricated at the Tiffany Glass and Decorating Co., and the interiors displayed Tiffany's "genius as a colorist and a luminist." Islamic-themed mosaics covered the walls of the front hall. Chinese embroidered silk hangings covered the walls of the reception room. Japanese silk brocade panels were assembled by Coleman from the pieces Havemeyer had bought from the Centennial Exhibition in 1876. These fabric panels adorned the ceiling in H.O. Havemeyer's library, which was called the Rembrandt Room as it housed his collection of Dutch paintings. In the music room, where the Sunday musicales were held, walls were hung with Chinese embroideries and lit by a magnificent Tiffany-designed chandelier, inspired by the wildflower Queen Anne's lace and made of clusters of opalescent blown-glass balls. The most spectacular element of the home was the flying staircase, inspired by that of Venice's Doge's Palace. It connected a balcony that circled the upper half of the two-story picture gallery to the room below. Suspended from the ceiling by sparkling chains and fringed with crystal, the stairs floated on a curved piece of cast iron and would tinkle when crossed. The house was torn down after Louisine Havemeyer's death in 1929. Some parts of the house are in the collection of the University of Michigan Museum of Art. The carriage house and stables were located at 126 East 66th Street, west of Third Avenue, designed in 1895 by H.O. Havemeyer's cousin William J. Wallace and S.E. Gage and later owned by John Hay Whitney. The Havemeyers spent the months of July and August in Islip, Long Island, where H.O. Havemeyer sailed on the Great South Bay. In 1890 they bought property on St. Mark's Lane in Islip, Long Island, next door to Louisine Havemeyer's sister and brother-in-law, Adaline and Samuel T. Peters.