Plas Newydd is a historic mansion located on the shores of Llyn Tegid in Wales. It was built in the 18th century and is known for its stunning architecture and beautiful gardens. The house features a mix of styles, including Georgian and Victorian, and is surrounded by picturesque landscapes. The estate is also home to an impressive collection of art, including works by James Whistler. Today, Plas Newydd is managed by Cadw, the Welsh Government's historic environment service, and is open to the public, allowing visitors to explore its rich history and scenic surroundings.