If your trip to Seattle is all organized but your itinerary is looking a little empty, let us give you a helping hand.One glance at a postcard stand will show that a visit to Seattle is not complete without going to Pike Place Market. As the most well-known sight in the city, you might want to spend more time here than a quick stop.Soak up the best that this city has to offer by adding Washington State Convention Center and Columbia Center to your must-see list. If you have some spare time, check out Museum of Pop Culture and Seattle Center too.Not far from the heart of the city, Seattle Waterfront is one spot you might like to put on your to-do list. Seattle Paramount Theatre and Chihuly Garden and Glass are also close by and worth a detour.