Complex sentence: The Philadelphia Aquarium was one of the first aquariums in the United States, and was located on the shore of the Schuylkill River in Philadelphia's decommissioned Fairmount Water Works buildings from 1911 to 1962 as part of Fairmount Park.
Split into simpler sentences: The Philadelphia Aquarium was one of the first aquariums in the United States. It was located on the shore of the Schuylkill River in Philadelphia's decommissioned Fairmount Water Works buildings from 1911 to 1962, as part of Fairmount Park.