In the heart of the Southwestern US, Phoenix is a huge, sprawling city that attracts large numbers of northerners during the winter months, who come here to escape the cold weather. The city and surroundings, which include Scottsdale, Mesa, and several other townships, are known in particular for their golf resorts and spa retreats.Phoenix is a great destination for golfing, shopping, relaxing, and hanging out by a pool. Natural areas that showcase the desert landscape can be found within the city and nearby, providing easy access for hiking or mountain biking. Summer temperatures can be extremely high, but October to April is very pleasant, especially if you want to spend time outdoors. Set on the shores of Lake Michigan, Chicago is a great summer destination, with parks and a beautiful waterfront. But its arts and cultural attractions, as well as fantastic shopping, make it a popular year-round destination.The Magnificent Mile, along Michigan Avenue, is the city's most famous area, with high-end luxury stores and galleries, along with famous buildings and outstanding architecture. Some of the tourist highlights include Millennium Park, the Art Institute of Chicago, Navy Pier, and the views from the Willis Tower SkyDeck.