Roof-top infinity swimming pool in real life

Quick answer：

Roof-top infinity swimming pools are a luxury architectural feature that combines a swimming pool with an unobstructed view of the horizon. They are often installed on high-rise buildings or resorts, offering a unique and breathtaking experience. These pools are designed to appear as if they extend to the edge of the building, creating a sense of infinity. Safety measures and engineering challenges are taken into account during the design and construction process to ensure the pool's stability and the safety of users.