People from the past have left behind a treasure trove of clues about their lives — from enormous monuments to fragments of personal items, as well as the bones of the people themselves. But the people who left these clues are often a mystery. Now, thanks to modern scientific techniques and technology, researchers can accurately reconstruct what those people actually looked like, helping to bring long-dead people from history back to life.

Here, we take a look at some of the best reconstructions.