Feel like royalty even just for one night, and stay at an actual castle. If you enjoy touring ancient castles, try spending the night in one! It is the ultimate fairy-tale experience and a dream come true for all romanticists. Europe is filled with romantic, medieval castles that have been transformed into modern hotels, made just perfect for your next weekend getaway. From Austria to Portugal, we've rounded up the best castles in Europe you can stay in and feel like a royal without spending king's ransom!