Streetwise maps are laminated and meant to fold up small enough to fit in a hip pocket. This map of Washington DC includes a small street index as well as an index of local attractions. There are also indexes for top attractions, parks, and public buildings. The map itself is very clear and well marked. It includes a small separate map showing the routes that the Metro trains follow. Additionally, there is page that shows a blown up map of the Mall that is amazing in its clarity as it really highlights the locations of all the museums, monuments, etc. in this highly popular tourist area.
One should be aware, however, that Amazon sells two different Streetwise maps for DC. One is labeled as "Compact" and is just 6.75" tall. The other is a bit bigger at 8.6". While this doesn't sound like a big difference, it has a huge impact on how easy it is to read the map. The small one has very fine print and can be quite difficult to make out. The larger one will still fit in a pocket and will also take major strain off of your eyes. Make sure you have the right one prior to ordering, amazon even mingles the reviews for the two so it can be a bit confusing.