El Cortez Hotel, Las Vegas, Nevada

Grand piano parked right behind Bugsy Siegel's old car in the lobby. Despite it's old school charm and a beautiful grand piano in the entryway, the El Cortez was not very accommodating to my musical musings. Despite renting a premium room on the top floor and rendering Frank Sinatra's "All of me" with as much mafioso charm as I could muster, the bar man still called security. Security man started putting on rubber gloves and calling backup before approaching me to interrupt my jazzy ballad. Reception desk clerks were at least feeling it. Difficulty: extra hard.