The grand cities of the world with their iconic cityscapes are musts.  By day, go visit museums and distinct neighborhoods each with their own character.  By night, enjoy the theater and nightlife or dine on fine cuisine at a top-rated restaurant or a casual meal at small local favorite.  Stay at a legendary luxury hotel or at a stylish boutique property. For a break from the fast pace, spend an afternoon at a city park or arrange for a side getaway.