Massachusetts General Hospital (MGH)

Massachusetts General Hospital is the first teaching hospital affiliated with Harvard Medical School and the largest. Consistently ranked among the top hospitals in the U.S., it is also the largest in terms of NIH funding. Together with the Brigham and Women's Hospital, it forms the Mass General Brigham, Massachusetts's largest healthcare provider. 

Massachusetts General Hospital is known for its Esther Dome. Once used as a surgical amphitheater, these days it serves as both a historical landmark and a teaching space.