Iparmuveszeti Muzeum (Museum of Applied Arts)

This spectacular building (designed by Lechner) caused much controversy when it opened. Today it is generally considered a masterpiece, although it has been considerably toned down over the years. Lovers of architecture and interior design simply must visit. The displays inside are almost all temporary but there is a permanent exhibition of Hungarian arts and crafts. It is worth noting that this was only the third such museum in the world (the first being in London, the second in Vienna).