An archaeological site is a location where evidence of past human activity is preserved and studied. These sites can range from ancient cities like Pompeii to burial grounds such as Stonehenge, providing valuable insights into the lives of people from different eras. Archaeologists excavate these sites to uncover artifacts, structures, and other remnants that help reconstruct historical narratives. Each site tells a unique story about the culture, technology, and environment of the time, making them crucial for understanding human history and development.