This restored Carrère and Hastings mansion from 1914 is a resplendent showcase for German and Austrian art, featuring works by Paul Klee, Ernst Ludwig Kirchner and Egon Schiele. In pride of place on the 2nd floor is Gustav Klimt’s golden 1907 portrait of Adele Bloch-Bauer – which was acquired for the museum by cosmetics magnate Ronald Lauder for a whopping $135 million.

This is a small but beautiful place with winding staircases and wrought-iron banisters. It also boasts the lovely, street-level eatery, Café Sabarsky. Avoid weekends if you don’t want to deal with gallery-clogging crowds.