If you'd like to catch some of the sights while you're in town, all you have to do is look around. Chances are there's a monument, memorial, museum, or historical building close by. Most of the war memorials are outdoors, so take that into account if the weather is a little on the chilly side. However, a little inclement weather shouldn't stop you from taking in some of what the District has to offer. You could literally spend months in Washington, DC, and still not get through all the museums. Indeed, seeing all the museums within the Smithsonian is a daunting task in itself.