They’ve been teasing us for months, and now Circa Las Vegas opens their doors of their “adults only” resort down on Fremont Street! Owner Derek Stevens says the hotel and casino is the world’s biggest sports betting complex with a six-pool rooftop swimming stadium. He expects to bring in thousands of players a day. The property officially opened today (October 28th, 2020) at 12:01 a.m. to adults 21 years and older. Facial coverings and temperature checks are required, of course, due to the pandemic. Circa construction took nearly two years, and Stevens would not comment on the cost. However, he…