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. Together with three other town houses of Victor Horta, including Horta's own house and atelier, it was put on the 'UNESCO World Heritage List' in 2000. It is located at 6, Rue Paul-Emile Jansonstraat in Brussels.
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.
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.