Amsterdam concentrates the canal-belt UNESCO ring, Van Gogh and Rijksmuseum's Vermeers, and the Anne Frank House on the Prinsengracht, with Haarlem and Utrecht reachable in 20 minutes by train.
Keukenhof tulip gardens open mid-March to mid-May 30 minutes south of Amsterdam, Koningsdag April 27 turns the city orange with canal parties.
Pride Canal Parade first Saturday of August packs the Prinsengracht, Holland Festival runs June, and Vondelpark concerts run free Sunday afternoons.
Museumplein quiet of summer crowds, Amsterdam Dance Event mid-October fills clubs across the city, and canal house gables turning gold in low autumn light.
Sinterklaas arrives mid-November, Amsterdam Light Festival illuminates canals from late November to mid-January, and the canals occasionally freeze for skating.