I purchased a puzzle with many photos of places around the world. Among those photos are at least one of a church, as well as others that may be idols.
Is there a problem with assembly of this puzzle?
Thank you for your question.
A church is not an idol, but a place of idol worship. By building the puzzle you are not building an idol, nor a place of it’s worship, therefore while it may be distasteful to build such a puzzle it is not a halachic problem.