Compass Pools has unveiled a concept for a four-sided infinity pool atop a London skyscraper, accessed via a submarine-style door.

The “death-defying” design includes a 158,503-gallon pool that would sit atop a 55-story hotel.

The walls and floor are completely transparent for a full view of the London skyline.

The bottom of the pool would also be transparent, so it could act as a skylight. At night it would be lit up with color-changing lights.

The pool is designed to have a full spectrum of colorful lights for night swimming.
