When doomsday arrives, Bruce and Jean Beach have no intention of elbowing their neighbors for space. The retired couple, who reside on 12.5 acres in the rural town of Horning’s Mills just outside of Toronto, Canada, have built themselves a massive, 10,000-square-foot underground bunker. Beyond being the largest private nuclear fallout shelter in North America (as far as we know, at least), the post-apocalyptic den has also been craftily built using 42 decommissioned school buses entombed in concrete.

Dubbed “The Ark Two,” the creation, spearheaded by 83-year-old Bruce Beach, sits 15 feet beneath the earth and can accommodate 500 people for several months. The bunker has in fact been designed to support a community, equipped with everything from months worth of food supplies to plumbing, a well, kitchen, laundry, library, dentist, nursery, daycare, ER/surgery room, and even a morgue. And why buses? He says they were cheap (just $300 a pop) and have reinforced steel roofs, which make for ideal bomb shelter molds.

Related: Reclaimed Bunker Offers Doomsday Luxury Accommodations

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Beach built the shelter 35 years ago he says “not for survival, but rather for the reconstruction of society” after an atomic catastrophe. He told the National Post, “People think, ‘What a nut,’ and I know that, but I don’t mind, I understand the world looks upon me that way.”

Indeed, Beach’s endeavor has not been free of conflict. Because he built the shelter without a permit, he’s been in and out of court over 30 times with the Canadian government. Officials want the bunker welded shut, citing public safety issues. However, Beach argues that “it’s the very opposite of something that is hazardous,” rather “something that is protective in hazardous situations.”

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To try to win public support, Beach has built relationships with the media to drum up positive publicity—and it’s worked. For the time being, officials have backed off. Beach now even holds volunteer opportunities and “work weekends” at the site. Visitors who are willing to put in a little elbow grease are guaranteed admission into the Ark—that is, “so long as they do so before the catastrophe occurs,” Beach writes on his site.

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“I used to always say the end of the world was going to be two years from now,” said Beach to the National Post. “But now I say it is going to be two weeks from now—and if I am wrong, I will revise my date.”

Via Oddity Central

All images via Bruce Beach’s website