Question: Adventure Theatre is located in an arts and cultural center that in its former incarnation, was a popular what?
Sentence (from "Glen Echo Park, Maryland"): Glen Echo Park is an arts and cultural center located in Glen Echo, Maryland that, in its former incarnation, was a popular Washington, D.C.-area amusement park that operated for several decades from the early 1900s to the 1960s.
Relevant evidence: Yes