By late 1970 the partially-built Cinderella Casltle was the tallest structure on the Magic Kingdom construction site. By February, 1971 its spires were nearing completion. A scroll-shaped sign above the Castle entrance reminded everyone: "REMEMBER, OPENING OCT. 1971".
How many bricks are in Cinderella Castle??? ZERO. Harharharharhar. Anyway. No more "fun" facts. But really, what a beautiful sight this must have been. How great would it have been to walk around and see everything come to life??
WDW Construction: Magic Kingdom
WDW Construction: Liberty Square
WDW Construction: Contemporary Resort
Walt Disney World in 1971 [Part 1]
Walt Disney World in 1971 [Part 2]
Magic Kingdom's Space Mountain Construction
EPCOT Construction from the Air