Conversation so far:
What happened in 1961?
In 1961, the Whitney began seeking a site for a larger building. It eventually settled at the southeast corner of Madison Avenue and 75th Street on Manhattan's Upper East Side.
Any notable person in the Whitney Museum of American Art article?
The Whitney Museum of American Art was founded in 1930 by Gertrude Vanderbilt Whitney, a wealthy and prominent American socialite and art patron.
How is the new building for the Whitney Museum of American Art better than the old?
The new building is much more expansive and open than the old ones.
Who built the new musuem building for the Whitney Museum of American Art?
The new building was designed by Renzo Piano.
Any interesting thing about the Whitney Museum of American Art?
After an April 30, 2015, ceremonial ribbon-cutting attended by Michelle Obama and Bill de Blasio, the new building opened on May 1, 2015.
Does the Whitney Museum of American Art have a branch?
From 1973 to 1983 the Whitney operated its first branch at 55 Water Street, a building owned by Harold Uris, who gave the museum a lease for $1 a year.

Question: Is that the only branch?
Self-contained rewrite: Is the 55 Water Street Branch the only branch of the Whitney Museum of American Art?