NEW YORK–(BUSINESS WIRE)–After a sold-out inaugural event, the Empire State Building Observation Deck (ESBOD) today announced the return of its popular themed silent disco with four new dates on its iconic 86th Floor Observation Deck. Guests can dance 86 stories above New York City on select Saturdays from Sept. 19 through Oct. 17, 9-11 p.m. “Our Silent Disco Nights invite guests to experience the 86th Floor Observation Deck in a new way, with a curated soundtrack and New York City’s best vie