The Infinity Pool Visa Gift Card shows a fascinating piece of pool design and construction work. It appears to blend seamlessly with or be an extension of the larger body of water in the background. The effect is the result of a creative design that calls for a dam-like structure called a weir on the outer wall. Water flows over the weir and into a catch basin on the other side, where it is re-circulated into the pool. Anyone would love to receive a Infinity Pool Visa Gift Card.