Cairo is set to inaugurate the long-awaited Grand Egyptian Museum (GEM) on Saturday, a $1 billion project showcasing over 5,000 years of Egyptian history with a panoramic view of the Giza pyramids.

The museum, more than two decades in the making, expects five million annual visitors and will display 4,500 of 5,000 funerary artifacts, including Tutankhamun’s iconic gold mask.

Authorities have kept preparations and guest lists under wraps, promising attendance by international dignitaries, Phys.org has reported.

Egyptian President Abdel Fattah al-Sisi has held high-level meetings to finalize arrangements ahead of the historic opening.