"The Dorotheum (German pronunciation: [ˌdoːʀoˈteːʊm] (listen)) is one of the world's oldest auction houses and is the largest auction house of art items in Continental Europe. ...
Established by Emperor Joseph I in 1707, it has its headquarters in Vienna on the Dorotheergasse and branches in other European countries. Besides auctions, the retail sector also plays a major role in Dorotheum's business. In the Dorotheum, works of art, antiques, furniture, and jewellery from various centuries are put up for auction. The building is constructed in the neo-classical style. It is an attraction for Viennese natives and numerous tourists alike." - (en.wikipedia.org 11.08.2021)
