The Vanderbilt Museum is located in Centerport on the North Shore of Long Island in Suffolk County, New York, USA.

[4] The museum complex, operated by Suffolk County, includes the mansion with furnishings and fine art, a marine museum with marine and natural history specimens (butterflies, birds, shells, mammals and fish), a curator's cottage, a seaplane hangar, a boathouse, gardens, and a collection of ethnographic objects (firearms and swords, ship models, and European, Asian and African objects).

Acting in costume, the staff enacts a performance about the era of the Gold Coast socialites, drawing on information gleaned from Vanderbilt's personal journal and historical archives about other owners and workers.

It became "the forerunner, the prototype of so many others that were subsequently built around this country,” said Mark Levine, director of the planetarium and associate professor of astronomy at Hofstra University.

In 2013, the planetarium reopened after a major renovation that replaced the roof, carpets, and seats; and upgraded the gift shop, lobby, ticket office, and other interior and exterior features.