The Hotel Solvay is a large Art Nouveau town house designed by Victor Horta on the Avenue Louise in Brussels. The house was commissioned by Armand Solvay, the son of the wealthy Belgian chemist and industrialist Ernest Solvay. For this wealthy patron Horta could spend a fortune on precious materials and expensive details. Horta designed every single detail, furniture, carpets, light fittings, tableware and even the door bell. He used expensive materials such as marble, onyx, bronze, tropic woods etc. For the decoration of the staircase Horta cooperated with the Belgian pointillist painter Theo van Rysselberghe. The Hotel Solvay and most of its splendid content remained intact thanks to the Wittamer family. They acquired the house in the 1950s and did the utmost to preserve and restore this magnificent dwelling. The house is still private property and can only be visited by appointment and under very strict conditions. The edifice is on the UNESCO World Heritage List.
The Hotel Tassel is a town house built by Victor Horta in Brussels for the Belgian scientist and professor Emile Tassel in 1893–1894. It is generally considered as the first true Art Nouveau building, because of its highly innovative plan and its groundbreaking use of materials and decoration.
The Hotel van Eetvelde is a town house designed in 1895 by Victor Horta for Edmond van Eetvelde, administrator of Congo Free State. Together with the Hotel Tassel, the Hotel Solvay and his own House and atelier it was put on the 'UNESCO World Heritage List' in 2000 as the core of epoch-making urban residences Victor Horta designed before 1900.
The Horta Museum is a museum dedicated to the life and work of the Belgian Art Nouveau architect Victor Horta and his time. The museum is housed in Horta's former house and atelier, Maison & Atelier Horta (1898), in the Brussels municipality of Saint-Gilles.