Concierge.com's insider take:
Located a few miles from the center of town in the posh Grunewald district, this hotel occupies a stately home built in the late-Baroque-classic style. The common areas and 54 rooms are equally grand, having been completely remodeled in 1994 under the artistic direction of fashion designer Karl Lagerfeld. The total cost topped $20 million, and it shows: Five thousand sheets of gold leaf were used to restore the original ornaments, and the walls were covered with silk damask from Lyon. The basement space, which was used as a bunker during the war years, is now a Roman-style bath with large new windows. As you may have gathered, the Schlosshotel was built for and still caters to old-money aristocrats, so egalitarian types—especially those who don't dress to impress—will likely feel out of place. Make sure to arrange a car rental or driver during your stay.