Which prior MCU films are specifically travelled to, or called out in Endgame?

Question

This is NOT a duplicate of:

• What is the MCU film "Critical Path" to get proper backstory before watching Avengers: Endgame? ("Contextual backstory" is different from "they visit it, or visually call it out")
• Is there any particular order in which one should watch the movies of Marvel Cinematic Universe? Why? (I'm definitely not talking about watching all of MCU, and certainly not what order to watch it in)

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I've watched Endgame, and all of the prior MCU, and thoroughly enjoyed all the visual callbacks. If I wanted to show a non-devotee the film and have them 'get' all the references, then what would they need to have seen?

Creating this as a wiki answer.

Answer 1

Visited

• Avengers (Assemble)

  • Battle of New York: famous circle scene.
  • Finale cornering Loki at top of Stark Tower scene.

• Thor: Dark World

  • Thor sneaking across the prison floor in front of Loki.
  • Talking to his mother

• Guardians of The Galaxy (Vol. 1)

  • Star Lord originally stealing the Power Stone.

Referenced

• Iron Man

  • "I am Iron Man" final line
  • Post-credits clanks

• CA: First Avenger

  • Dancing with Peggy
  • Seeing Peggy in the 70's military base.
  • Red Skull introduced and teleported to Vormir (arguably a retcon)

• CA: Winter Soldier

  • SHIELD Strike Team
  • Elevator scene
  • Hail Hydra
  • Pierce in the lobby.

• Avengers: Infinity War

  • Thor going for the head.

• Agent Carter

  • Jarvis introduced (he appears in 1970)