When you have a large wedding party, like this couple, 23 people including them, it takes some space to fit them all into the same portrait. An experienced wedding photographer will know the best places to take them and all the logistics of getting everyone around in a timely fashion. Especially if they want to include iconic landmarks in DC like the Lincoln Memorial. The photographer will also know when a permit is needed for photos and how to get that permit. It's important to prioritize what you as a couple want. Which places are most special to you and which pictures are most important? Then work with your photographer to determine the time necessary to use those locations and how many you can realistically fit in so you have the best experience on your wedding day and the best pictures. Moving a wedding party, especially a large one, around DC isn't easy. But an experienced photographer knows the routes, knows where the bus can pull over or park, how much time and walking is involved and more importantly which areas photograph the best at which times of day. After the wedding day is over, all your memories are tied to your photos, what you have pictures of is what you will remember the best. And so making time for those pictures that you'll treasure forever is well worth the effort to make it happen.