Complex sentence: Cinderella Castle was completed in July 1965, after about 18 months of construction, and reaches to a height of tall, measured from the concrete bottom of the moat, which itself is deep at the drawbridge.
Split into simpler sentences: Cinderella Castle was completed in July 1965, after about 18 months of construction. The Castle is tall, as measured from the concrete bottom of the moat, which itself is deep at the drawbridge.