Built by Moon World Resorts, “MOON will transport millions of guests annually on an experiential life-altering journey, previously thought possible for only a few,” the company’s website says.

“This project is as ambitious as a space program; it’s going to be extraordinary,” Hansen told El País in Spain, which is reportedly among the leading candidates to be one of the 10 potential locations for MOON.

The company has reportedly raised “millions” of dollars, Sandra Matthews, the co-founder and president of Moon World Resorts, told El País, without specifying the exact amount.

“At this point, only visionaries are interested, because you really have to be one to imagine something on this scale," Hansen told El País.

See the Sky as ‘If You Were Actually on the Moon’ Costing around $5 billion to construct, the MOON complex is hoping to serve as “the blueprint for a smart city,” Matthews told El País.