Dubai's pool hides a sunken city

You are currently hovering over an apartment complex where the rent is free, the furniture is pristine, and every resident has been dead for decades. This isn't a crime scene or a ghost town, but a 14-million-liter tank of fresh water in the middle of the desert.

Deep Dive Dubai is a 60-meter hole in the ground that contains a full-scale, post-apocalyptic city. While most pools offer a shallow end and a chlorine smell, this one offers a submerged Mercedes, a functional pool table, and a library where the books are made of plastic.

The water is kept at exactly 30 degrees Celsius, not for comfort, but to prevent your body from shivering while you try to play Pac-Man on an underwater arcade machine. Because there are no currents, salt, or predatory life, the silence is absolute. You are wandering through a domestic tomb where the living room TV will never turn on and the streetlights never flicker.

It took 14 million liters of water to fill this concrete abyss, which is filtered every six hours through volcanic rock. The engineering is so precise that the facility doubles as the region's largest underwater film studio, complete with 56 cameras that track your every movement from a central control room.

The deeper you go, the more the "city" decays. Shallow levels feature intact luxury apartments, but the bottom reaches resemble a world reclaimed by time, filled with crumbling masonry and shadows. It is a meticulously maintained disaster zone designed for tourists.

If you happen to get the bends while exploring the kitchen, the facility houses a hyperbaric chamber that can treat ten people at once. But even with the best tech, there is one strict rule: you are forbidden from visiting the top of the Burj Khalifa for at least 24 hours after you surface.

After spending an hour in a fake basement 60 meters underground, the sudden pressure change of a skyscraper elevator could cause nitrogen bubbles to form in your bloodstream, leading to decompression sickness.