Someday, just as we dig up ancient sites looking for artifacts from the past, so too might aliens one day come to Earth and seek out relics of humanity. That's what's going on in Excavation Earth. In the new expansion, It Belongs in a Museum, players get a new option to display their found relics in an interplanetary gallery. This new expansion is up on Kickstarter now.
From the campaign:
The campaign is making its way to 4x funded with 19 days left to go.