A cryptocurrency entrepreneur who bought a piece of conceptual art consisting of a simple banana, duct-taped to a wall, for $6.2 million last week ate the fruit in Hong Kong on Friday.

Citizens, artists and opposition politicians in Poland are sharing photos of themselves eating bananas in protest of an art gallery after its decision to remove a piece of art that featured the fruit.

Wang’s video clip showed the woman eating a banana before placing the banana peel into a small plastic bag she had brought with her. Advertisement “While it is not ideal to eat inside subway ...