What is the ruling on acquiring miniatures or accessories in the shape of the Eiffel Tower, given doubts about its designer being a Freemason, and must these possessions be destroyed if that is proven?

Designing a building by a Freemason or anyone else does not prohibit acquiring its models or photographing it; for the original rule regarding things is permissibility unless there is evidence to the contrary. It is feared that this question may stem from whispers (waswas), and one should turn away from whispers and not ask about them, and supplicate to Allah for healing from them.