You don't ask, you don't get...
You've got the Monza (fastest F1 circuit), Monaco (slowest F1 circuit), and Silverstone (oldest F1 circuit), so logically it should be the newest F1 circuit. Although that's Las Vegas, it's a temporary circuit, as is Miami, so it's Losail or Jeddah, or if they're excluded for human rights reasons, Algarve.