The oldest and possibly “most haunted” hotel in Las Vegas is hosting a contest just in time for spooky season. Thrill-seekers up for the challenge will have the opportunity to apply to spend a weekend inside the El Cortez Hotel & Casino hunting down ghosts — in the hopes of winning a $5,000 prize. Only one lucky soul will be chosen to participate. The legendary El Cortez, the longest-running hotel casino in Vegas, is situated on Fremont Street, often referred to as “the Old Strip” or “Old Vegas.