Check out this great find. It’s a rendering of a proposed design for the Kennedy Center, then called the National Cultural Center. It’s actually not terribly different, just with far more curved lines than the boxy shape it takes today. Not long after it was built, a very curvy Watergate would take up position right next to it.
This drawing was done by Edward Durell Stone, the architect who would design the final building as well as a contemporary of Frank Lloyd Wright.