Person of Interest
Mt. Olivet Cemetery
Carter and Fusco attend Cal Beecher's funeral where Quinn gives the eulogy in episode 2x20 “In Extremis”. Finch and Shaw watch Carter's funeral where Paul and Taylor are mourning in episode 3x10 “The Devil's Share”.
Source: Person of Interest — Wikia
Potter's Field
Shaw stands over Root's grave and gets a message from the Machine that Samaritan is coming for her in episode 5x13 “return 0”.
Funeral
The Machine watches a young John Reese at his father's funeral in episode 5x13 “return 0”.