Unfortunately it’s not in Amsterdam but De Pont, museum of contemporary art is worth the 1,5 hour trip with the train. The building itself is beautiful, it’s a former wool mill but also there collection is worth seeing!

Rijksmuseum in all glory but the rather overlooked library is a must.

This place has, beside the excellent pastry, the best shrimp croquettes in town. 

The Oostvaardersdijk is huge dike that protect the polder of Flevoland from being flooded. It's near the city of Almere that was founded in 1975 on the just recovered land of the Flevopolder. It is a great place to see the skyline of Amsterdam and look out over the Markermeer, the former Zuiderzee. When you turn around you can look down in the polder on an impressive group of modern windmills, in the distance you see the city of Almere. This is Holland at it's core: endless flats with the endless skies you know from Seventeenth century painting. You can drive the Oostvaardersdijk north to Lelystad and cross the lake to Enkhuizen and back to Amsterdam. On the way you drive past Oostvaardersplassen nature reserve, a large area of marshes and wild land in the Flevopolder, where they introduced wild horses and prehistoric cattle.

Jenever is a traditional Dutch spirit, sometimes called Dutch gin or wodka in English. Wynand Fockink has a distillery and tasting house right at the very hart of Amsterdam. This place is frequented by locals and tourist alike because of their delicious jenever. Be sure to try a glass of Wynand Fockink Superior. If they empty the bottle while filling your glass you're entitled to a so-called 'Amsterdammertje'; you'll have to drink your glass in one gulp and then you get a free refill.