There are two heavily cultivated gardens outside Muiderslot Castle, across from the drawbridge over the moat: a vegetable garden and an ornamental garden, each entered from a central passageway.
Amsterdam's floating flower market
We stumbled upon the flower market in Amsterdam quite by accident. Though it had been on our list of things to see during our visit, the list was long, and we hadn't made it a priority to search for this specific sight/site yet. But one day we just found ourselves in it, and it was a pleasant surprise.