Picture of an infinity pool

Quick answer：

An infinity pool, also known as a vanishing edge pool, creates the illusion of water extending to the horizon. It is designed with one edge of the pool appearing to blend seamlessly with the surrounding landscape or the water beyond it. This type of pool is often used in luxury homes and hotels, offering a unique blend of swimming and panoramic views. Infinity pools are constructed with special engineering techniques to ensure water quality and prevent water from escaping at the vanishing edge.