The party that Seth throws was filmed at Manhattan's National Arts Club. The club was founded in 1898 to promote public interest in the arts; in 1906 it moved into its present location, the Victorian Gothic Revival brownstone at 14-15 Gramercy Park South that was once the home of former New York governor and unsuccessful 1876 U.S. presidential candidate Samuel J. Tilden (when Tilden moved in in the 1860s, he hired the architect Calvert Vaux--perhaps best-known for co-designing Central Park--to combine the two addresses and redecorate the facade in the Aesthetic Movement style). Some of the club's rooms have maintained largely the same opulent interior decoration since the turn of the century, so it has been a frequent site for location filming. Other projects that have filmed scenes at the National Arts Club include Martin Scorsese's The Age of Innocence, Woody Allen's Manhattan Murder Mystery, and Amy Sherman-Palladino's The Marvelous Mrs. Maisel. To hold an event at the National Arts Club, one must be a member (or be sponsored by a member), strongly implying that Seth is meant to be understood as a club member.