You might have read Tesla and SpaceX CEO Elon Musk's tweet: Aliens built the pyramids obv. Musk was being sarcastic and this BBC piece explains how a large group of hard-working and organized workers built the tallest structure made by humans for 3800 years.
ICYMI: Here is my original design.
• Price includes free shipping
• Frame size: 16×20 in | 40×50 cm
• Paper thickness: 10.3 mil
• Paper weight: 5.57 oz/y² (189 g/m²)
• Alder, semi-hardwood frame
• Black .75” thick frame
• Acrylite front protector
• Hanging hardware included