A few other proposed entries: - https://en.wikipedia.org/wiki/Svalbard_Global_Seed_Vault https://en.wikipedia.org/wiki/Svalbard_Global_Seed_Vault - https://en

A few other proposed entries: - https://en.wikipedia.org/wiki/Svalbard_Global_Seed_Vault https://en.wikipedia.org/wiki/Svalbard_Global_Seed_Vault - https://en.wikipedia.org/wiki/Voyager_program https://en.wikipedia.org/wiki/Voyager_program (the twin spacecraft that have since left the heliopause)