See:

https://simpleflying.com/hamburg-airport-looks-to-scrap-its-ex-lufthansa-boeing-707/

and

https://simpleflying.com/another-lufthansa-707-scrapped/

Given the pre-pandemic popularity of such venues as the Smithsonian National Air and Space Museum, it seems incredible that aircraft still in one piece should be broken up in this manner and not preserved.