Where In Vienna Is Carmen Sandiego? ROUND FOUR!

If you haven't been following along, we're playing a new version of the game "Where In The World Is Carmen Sandiego". It's like the old game, except you have to guess where you would find the statue, sign, sculpture, etc . . . that we show pictured below. They are all in Vienna, Virginia!

ROUND ONE found us at the Vienna Little League's Yeonas Field:

ROUND TWO found us at Water's Field:

ROUND THREE found us at the Patrick Henry Library in Vienna: 

The first three rounds were for beginners. Now it's time to move to the next level!

Here's ROUND FOUR. Where in Vienna do you see this?

Don't enlarge the photo  - it will give away the answer!