This building paper model is the Lighthouse of Alexandria from delta7studios. The Lighthouse of Alexandria, also known as the Pharos of Alexandria, was a tower built between 280 and 247 BC on the island of Pharos at Alexandria, Egypt. Its purpose was to guide sailors into the harbour at night.
With a height variously estimated at somewhere between 393 and 450 ft (120 and 140 m), it was for many centuries among the tallest man-made structures on Earth. It was one of the Seven Wonders of the Ancient World.
You can download this building papercraft from here: The Pharos of Alexandria Lighthouse Free Paper Model Download