
Giga project: A massive multi-billion dollar "giga project" is set to transform Diriyah, considered the birthplace of Saudi Arabia.

Origin story: Diriyah is the ancestral seat of the Al Saud dynasty and home to the UNESCO World Heritage Site of At-Turaif, the site of the First Saudi State, established in 1727.

Complex plan: The development of Diriyah is a $63.2 billion project which, according to Jerry Inzerillo, group CEO of the Diriyah Gate Development Authority, is "one of the largest and most complex in the world."

Phase one: The first phases