Muiden (Muiderslot) is the location of one of the most important castles in the Netherlands. It's situated on the Vecht River east of Amsterdam, at the river's mouth on what used to be the Zuidersee but which is now the enclosed Lake IJsselmeer. The castle was built in the 14th century. During the 17th century, Muiden became a gathering spot for many of the leading lights of the Dutch Renaissance, then fell into disuse in the 18th century. Check it out from above in this drone video by Peter van Haastrecht.