After Batman closed up Wayne Manor in the late 1960s and started operating out of the Wayne Foundation Building, Batman artists came up with a distinctive appearance for the latter:
The tree inside the building functioned as an "establishing shot". In TV and movies, directors often use an establishing shot to tell viewers where the particular scene is taking place. Anyway, variations on that panel appeared hundreds of times in the Batman comics over the years, starting in the late 1970s.
But here's something I had forgotten: the tree is fake, as mentioned in Batman #306 (December 1978):
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3 days ago