30. Figuring Out the Stonehenge Mystery
One of the most critical and mysterious monuments in the whole of Britain has to be the prehistoric Stonehenge. For centuries since it was discovered, experts have been trying to figure out what is these large monuments with rocks placed in such a particular way, who built them, and what their function was. Around the 1860s, a group of royal engineers, with Colonel Sir Henry James in charge, decided to find the answers to these questions by first mapping and doing survey work in the area. They discovered that it was built in 3 phases between 3000 and 1500 BC with some renovations over time. But overall, the mystery continues.