You get abducted by aliens and are about to be experimented on UNLESS you tell them the best thing humanity has ever achieved. what do you tell them?

You get abducted by aliens and are about to be experimented on UNLESS you tell them the best thing humanity has ever achieved. what do you tell them?

Could be anything, buildings, technology, weapons, love, music, culture. what do you tell them?

You get abducted by aliens and are about to be experimented on UNLESS you tell them the best thing humanity has ever achieved. what do you tell them?
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