When people think of Richard Nixon, most conjure up images of Watergate, the Vietnam War or his historic trip to China. 

But the family of the 37th president wanted the public to know that Nixon's tenure involved so much more: the space program, a nuclear arms control treaty signed in Moscow, desegregation, lowering the voting age and ending the draft. 

These landmarks can now be explored in detail as part of an interactive experience thanks to a year-long $15 million upgrade to the Richard Nixon Presidential Library and Museum. It was built in 1990 and dedicated by Nixon and his wife Pat, with presidents George H.W. Bush, Gerald Ford and Ronald Reagan in attendance.