I am on a continuous quest to visit all places presidential including grave sites. On my recent trip to the East Coast, I am excited to say I saw four presidential graves!
Here I am at John Tyler's grave at Hollywood Cemetery in Richmond, V.A.
Here is James Monroe's grave at the same Hollywood Cemetery.
This is Thomas Jefferson's grave in a cemetery at his home Monticello in V.A. Jefferson's ancestral family still owns the cemetery so the general public is not allowed to actually go into the cemetery; this picture was taken through bars. 
And this is me giving Taft's grave a hug at Arlington National Cemetery in Washington, D.C. Oh Taft. 
