Let's explore an amazing set of very rare construction photos of Magic Kingdom's Liberty Square. These photos were taken at different stages of construction.
In the photo above we see Haunted Mansion construction in the distance. That building on the right is The Hall of Presidents before the bell tower steeple was added. Next we see a higher view of Liberty Square with some Cinderella Castle construction in the foreground.
The Hall of Presidents building is taking shape. The Liberty Tree Tavern exterior has been almost complete for some time now. Gift shop construction begins.
Upper levels of the gift shops begin. Wait... No Liberty Square bridge yet? Very odd.
Beautiful curvy brick wall (still there today) is coming along nicely. There's that wonderful backside of Liberty Tree Tavern. It's meant to look like the frontside of "other" buildings.
The large white building seen here is The Hall of Presidents show building. Connected to it to the north is the show building for Peter Pan's Flight. Also, we have a bridge now.
Riverboat dock, dry Rivers of America, and Haunted Mansion in the background. Notice there's no canopy over the outside Haunted Mansion queue?
Construction continues on the Admiral Joe Fowler Riverboat (but not in in Liberty Square yet). Remember the story of this first boat? It began carrying passengers through Rivers of America on October 2, 1971 (the day after Opening Day). It was damaged at dry dock in 1980 and never returned to the Rivers. A second riverboat called Richard F. Irvine (with only one smoke stack) was added in May of 1973. It continues to run today under the name Liberty Belle Riverboat. In this photo I noticed the back windows are a bit different than the windows in the final product. They must have changed them at some point.
Here we can compare aerial views of Magic Kingdom construction in December of 1969 to the year-old park in December of 1972. Look at the evolution of Seven Seas Lagoon and Bay Lake!