The Eisenhower Library campus includes a church-shaped building called the Place of Meditation. The name of the building isn't figurative: there's an actual chapel inside the Eisenhower tomb.
As a president who was known for his openness and candor, it should be no surprise that Gerald Ford's gravesite is out front next to the Ford Presidential Museum in Grand Rapids.
It doesn't smell in this basement crypt, but even if it did, there are two presidents and two first ladies in there. A room like that could smell if it wanted to.