10) 740 Park Avenue
A daydream for most, and reality for an elite few, 740 Park Avenue is a luxury apartment co-op where some of the wealthiest people in New York, and the world, call home. It boasts the largest concentration of billionaires in the US. The building itself is pre-World War II, art deco built in 1929 by James T. Lee, grandfather of Jacqueline Kennedy Onassis. It’s an iconic design that manages to stand out in a city where the great is commonplace. Looking into some of the apartments is like looking back in time to a lost era where wealth and class went hand in hand. People have set records for what they have paid to have a 740 Park Avenue home address. One eighteen room duplex sold for 70 million dollars, after a heated bidding war between three potential buyers. A few of the more notable tenants include David Koch of Koch Industries, fashion designer Vera Wang and John D. Rockefeller Jr. If people can’t live there, they shouldn’t feel too bad. Barbara Streisand tried to get a place there, and was denied.