I saw this in Charlotte Homearama. It was a nice water feature while you were sitting on the patio and it looked easy to make if you can drill a million tiny holes in a piece of copper tubing and connect it to a recirculating water pump.
A beautiful courtyard home in the colonial town of San Miguel de Allende, Mexico showcases this sparkling lap pool. See the full feature article here: Absolutely stunning Casa Lluvia Blanca in Mexico. (via House + House Architects)