For Old Masters, this is one of Europe’s premier showcases. A bronze Pallas Athene, perched above the 19th-century building’s great dome, presides over a fabulous collection of Vermeers, Holbeins, Bellinis, Corregios, and many others, plus unmatched exhibits of Rubens and Breughel the Elder, each of whom has a dedicated room.. The Sculpture and Applied Arts group is also a must-see, with one of the best assemblies of Medieval and Renaissance finery to be found anywhere; Cellini’s salt cellar is here, as is Miseroni’s crystal tower. Antique tapestries line many of the walls. The Prehistoric and Early Egypt group is quite extensive, with collections of sarcophagi, mummies, rare papyrus writings, grave goods, and household items dating back to 5,000 BC. The Antiquities group includes rare sculptures and mosaics from Greek, Minoan, Roman, and Balkan cultures. The famous Roman piece Gemma Augustea is here. For those who want to complement their visit to Europe’s artistic history with a tour of its physical history, Vienna’s notable Natural History Museum is next door. Open Wednesday-Monday; closed Tuesdays; admission except first Sunday of the month.