The cosmic microwave background (CMB) provides us with a snapshot of the Universe at the time of recombination, offering valuable insights into its origin, composition, and evolution. High-fidelity observations of CMB anisotropies have been key in advancing our understanding of the Universe. In this talk, I will provide a comprehensive overview of the key areas where precision CMB experiments can provide new information, including the current and next-generation CMB experiments. Additionally, I will share my personal experience with the South Pole Telescope collaboration and delve into some of our recent results from our gravitational lensing science. With an emphasis on future prospects, I will also highlight what the future holds for this exciting field of study.