At the famous "animal hole" in Bremen, a drain cover with a difference! Pop a coin in and the sounds of animals from the famous Brothers Grimm fairy tale "The Town Musicians of Bremen" play in turn - first the cockerel, then the cat, then the dog, then the donkey. 

This binaural recording was late at night when the square was deserted, meaning the sound travelled clearly out into the night air, instead of being obscured by the usual bustling sounds of the evening.

Recorded in May 2025 in Bremen, Germany by Cities and Memory.