The thing that I find always catches out first-time visitors to Nationals Park is the way the seat numbers go the opposite way from the section numbers. That is, the section numbers run anti-clockwise around the ballpark, but the seat numbers essentially run clockwise (restarting at each section). I suppose the idea is that as you look at the section from the field, Seat 1 is on the left and the numbers ascend to the right, but I completely understand why someone who's never been there before and is walking down the concourse to his seat would pass, for example, Section 401, then 402, then 403, and so assume that Seat 1 will be at the first entry to Section 404 when in fact it's at the second entry.