It all started with a huge land purchase. THE Mark ZuckerbergThe almighty CEO of Meta, ex-Facebook -according to Forbes, it is the fifth richest man in the world, who is worth an estimated $129.9 billion—purchased land on the Hawaiian island of Kauai in 2014 for $170 million. It was the first step to build a residence there himself. Or so they thought.

The project has been controversial almost from the start, mainly because it disrupts daily life on a small island. This is a paradise where “Jurassic Park” and “Pirates of the Caribbean” were filmed. The island has 73,000 inhabitants and has not lived off tourism for a long time. They say there was only one lighthouse on the entire island until 1973. Its residents—a mix of native Hawaiians and Asian and Puerto Rican immigrants, descendants of those who came to work in the sugarcane plantations—all know each other. The hundreds of workers hired for Zuckerberg’s… pharaonic project are bound by a strict confidentiality agreement and, in such a tight-knit community, that can only breed rumors and mistrust.

But even before construction began, opposition to the project became global. A Change.org petition calling for an end to the Facebook CEO’s “colonialism” in Hawaii has garnered one million signatures, El Pais reports.

“He’s suing so he can build a mansion. He builds a mansion on what? Live in Kauai for two months out of the year? This is inhumane. It is sick,” the resolution states. At the time, Zuckerberg was trying to understand why there was resistance from some. In fact, he himself was trying to limit the “invaders”, so that no one could find out what was happening on the land he had acquired. Natives were unnecessary for Zuckerberg…

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The Wired, the world’s most popular new technology magazine, obtained access to the site plans, but only those that appear in public documents because the project is kept secret. And it seems that Zuckerberg’s idea goes far beyond building a small house with a garden to spend the summer there.

According to the magazine, he has acquired a huge area of ​​land: 5,000 acres. That’s about 65 times the size of Buckingham Palace or Versailles!

According to Wired, volthe complex includes over a dozen buildings. The central core consists of two houses
(their height is unknown), with at least 30 rooms and 30 bathrooms, elevators, offices, meeting rooms and an industrial kitchen. A third building adjacent to the residences includes a gym, sauna, jacuzzi, spa, swimming pool and tennis court. In a nearby forest, 11 disc-shaped treehouses will be built, connected to each other by a network of rope bridges. There are other complexes throughout the property, from guesthouses to administrative and service buildings. The project has progressed far enough that Zuckerberg has already held two corporate events at the complex, which he envisions as self-sufficient and also features a massive water tank.

However, the underground section is of greatest interest. “The plans show that the two central residences will be joined by a tunnel, leading to a 5,000 square meter underground bunker, which will have living quarters, an engine room and an escape hatch accessible by ladder.”Wired reports.

“The door to the underground shelter will be made of metal and filled with concrete – a style common in warehouses and bomb shelters.” The total price of the project is difficult to estimate, but Wired estimates it at least $100 million, plus $170 million for the land. This makes it the largest civil engineering project ever undertaken on the island.

And what does Zuckerberg have to say about all this? Shortly after the article was published, he uploaded a seconds-long video to Instagram in which he appears to be laughing at the information…