If there is one residential building that is considered Manhattan's best is definitely the River House. Now, there is a mansion for sale and its tag price is $130 mm.
This new offering is now New York’s most expensive home for sale in NYC, and the fourth in the US. It is a five-story building that has served as River House’s private club since 1931, when the co-op building first opened. The space has been leased by the non-profit River Club of New York for the duration of that time period.