Then:

 Uijongbu in 1973 courtesy of Mike Ward.  Camp Kyle can be seen towards the lower right of the photograph.  The amount of rice paddies inside the city is amazing compared to Uijongbu today.  Also the stream running through the city is now completely canaled with concrete or rock.
Now:

Uijongbu as seen today.  In this picture you can see Camp Kyle in the foreground with Camp Essayons in the lower right.  Dobongsan Mountain is in the distance.  Notice no more rice paddies in Uijongbu and the stream is not even visible due to all the buildings.  The changes in this city are really amazing.