It is in the city centre. This former navy area is now partly open for the public. In summer you can swim in the canal there and have a great view on old Amsterdam, the Scheepvaartmuseum and the dead heart centre of Amsterdam. I like it most in winter, silent, grey, a place to mesmorize, walk alone around, meet a local who is walking his dog, than and have a coffee in pension Homeland, the restaurant hotel there. In central Amsterdam the space is rare, and what is there is overrun with tourists and full of local traffic, the trams, a million bikes, cars and pedestrians. That is why I like this place so much, super quiet space in the centre of Amsterdam.
Open Monday mornings and Saturdays all day, there's always something to find at this market. Lots of vintage items, the most gorgeous florals, and fresh food for making an amazing dinner that night.
Under the city, the extraordinary Gesamtkunstwerk by Louis van Gasteren, Jan Sierhuis and others is located in Nieuwmarkt underground. This is one of the public artworks of the Seventies and early Eighties endangered due to station renovation on the Underground Eastline. At present there is a notice hanging at different spots on the wall: ‘‘This artwork has been temporally removed due to renovations”.
The Bartolotti is perhaps one of the most beautiful Museum Houses Amsterdam has, built by someone who once was the richest man in the city, but it's a bit hidden in plain sight. These days, it is run by a group of lovely old ladies, who can't wait to offer you tea or juice. You can walk around the house like you live there.
You have to ring the doorbell to get in.
(picture from Google, by Arjan Bronkhorst)