Katie Friedman is a contributing writer for HGTV and Travel Channel. Based in Detroit, she's partial to big cities and has visited many across the U.S. and in Europe, including London, Prague, Berlin, Vienna, Krakow and Rome. Next up on her list? Paris and Amsterdam. She's fond of cobblestone streets, loves getting to know cities through their art scenes and will go any distance for Insta-worthy ice cream.