The Denver Aquarium is a fictional aquarium situated in Denver. The building is similar to the real Downtown Aquarium which is also situated in Denver. It appears in the Season Thirteen episode, "Whale W*****", where the Japanese slaughtered the whales and dolphins in the park.
Background[]
The Marsh family travels to the aquarium for Stan's birthday. As they were interacting with dolphins at a pool, several Japanese people arrive and slaughter all the dolphins, leaving blood spilling all over the pool. Stan later returns home with a Denver Aquarium white T-shirt stained with dolphin blood, and a photograph of himself with a dead dolphin.