Karnak is the largest ancient religious site in the world.

Construction of temples started in the Middle Kingdom and continued through to Ptolemaic times.

From reports in 12th century BCE, more than 80,000 workers and slaves were engaged in its building process.

The Karnak temple complex, universally known only as Karnak, describes a vast conglomeration of ruined temples, chapels, pylons and other buildings.

This was ancient Egyptian Ipet-isut ("The Most Selected of Places"), the main place of worship of the Upper Egypt Triad of the father Amun-Re, mother Mut and their son Khonsu in the monumental city of Uast.

It was packed with humans from all over the planet.

Approximately thirty pharaohs contributed to the buildings, enabling it to reach a size, complexity, and diversity not seen elsewhere.