17. Nationals Park – Washington Nationals
Nationals Park was ahead of its time when it built it’s social gathering space. Now every ballpark in the league is trying to find room to add of their own space for millennials to gather.
The ballpark is also responsible or the development of the area around Nat’s Park. The neighborhood is now one of the fastest growing in D.C. This is probably why it seems like there’s almost always construction happening in the city behind the outfield walls.