Ronald Reagan Presidential Library

The Ronald Reagan Presidential Library and Center for Public Affairs is the presidential library and final resting place of Ronald Wilson Reagan, the 40th president of the United States and Nancy Reagan, the First Lady of the United States. 
The library is located in Simi Valley, California. The Reagan Library is the largest of the thirteen federally operated presidential libraries. The street address, 40 Presidential Drive, is numbered in honor of Reagan's place as the 40th president.
Construction plans for the library included to build a tomb for the eventual use of Reagan and Nancy. Following a sunset service on the library grounds the last evening, on the morning of June 12, 2004 Reagan was laid to rest in the underground vault. Nancy Reagan, who died on March 6, 2016, was buried at the library next to her husband on March 11.