Eldorado is an Art Deco style apartment building named after a luxury apartment block that previously occupied this site.  It was called the El Dorado and was built in 1902. 



The Emporis website has some interesting facts about the Eldorado:

• The building has a cast stone base with bronze reliefs and a massive un-setback bulk with a series of darker vertical bands.
• The towers have similar bands and end in setbacks and top finials introduced to the design by Emery Roth.
• Designed as a less extravagant development of the earlier multi-towered apartment buildings, the apartments were generally smaller in size, although not less sumptuous, with Art Deco hardwood floors and 3-meter ceilings.
• The building was converted to a co-op in 1982 and incorporates at the present 216 apartments, with a total of 1,300 rooms.
• The towers house only one apartment per floor, resulting in a true all-around view from these apartments.
• The famous Eldorado residents include Marilyn Monroe, Faye Dunaway and Groucho Marx.