4. Port of Nagoya Public Aquarium
The aquarium was originally home to four orcas, but on August 2, 2014, the killer whale "Bingo" reportedly passed away due to a respiratory disease. On the English section of their page, the aquarium thanks "many people for giving us valuable advice about how Killer whales should be kept at the Port of Nagoya Public Aquarium. Our basic attitude toward keeping and exhibiting animals at the Aquarium has remained unchanged since the Aquarium's founding."
Port of Nagoya Public Aquarium