The 2017 "Billboard" Music Awards was held at the T-Mobile Arena in Las Vegas on May 21, 2017.
 The list of nominees was announced on April 10, 2017.
 Non-televised awards were announced on "Billboard" website the same day as the main ceremony.
El Rancho Vegas was a hotel and casino on the Las Vegas Strip.
 It was located at 2500 Las Vegas Boulevard, at the southwest corner of Las Vegas Boulevard and Sahara Avenue, and opened on April 3, 1941.
 Until 1942, it was the largest hotel in Las Vegas with 110 rooms.
 On June 17, 1960, the hotel was destroyed by fire.
 In 1982, the El Rancho Hotel and Casino formerly known as the Thunderbird and later as the Silverbird opened across the street from the former site of the El Rancho Vegas, creating some confusion.
Apollo Arena Bratislava, also known as the Danube Arena, was a proposed a multi-use indoor arena in Bratislava, Slovakia.
 It was to be used mostly for ice hockey and basketball matches, as well as concerts and similar events.
 The 2011 IIHF World Championship was to be held in this arena, but later it was decided to renovate the old Ondrej Nepela Arena rather than to build a new stadium, as the city did not possess land in the proposed area between Apollo Bridge and Harbour Bridge on the right bank of Danube river.
 The arena was supposed to have a capacity of 13,600 people.
 It was named after the former Apollo refinery, destroyed by carpet bombing by the Allies in the Second World War, which was lying nearby on the left bank of Danube.
Naked City is a neighborhood located in Las Vegas, Nevada north of the Las Vegas Strip The neighborhood is located at the northern end of the Las Vegas Strip, near the intersection of Las Vegas Boulevard and Sahara Avenue.
 Due to the lack of commitment to updating the neighborhood, Naked City went from a modern neighborhood to a run down area full of poverty.
 Naked City has been known to be one of the most dangerous neighborhoods in Las Vegas.
Royal Arena is a multi-use indoor arena in Ørestad Syd, a new development in the city of Copenhagen, Denmark.
 The ground was broken for construction on 26 June 2013 and the arena opened in February 2017.
 It has a capacity of 13,000 for sporting events and up to 16,000 (either sitting or standing) for concerts.
Rogers Place is a multi-use indoor arena in Edmonton, Alberta, Canada.
 It is mainly used for ice hockey and other indoor sports, but is also configurable as a venue for concerts or other events.
 Construction started in March 2014, and the building officially opened on September 8, 2016.
 The arena has a seating capacity of 18,347 as a hockey venue and 20,734 as a concert venue.
 It replaced Northlands Coliseum (opened 1974) as the home of the NHL's Edmonton Oilers and the WHL's Edmonton Oil Kings.
 The arena is located at the block between 101 and 104 Streets and 104 and 105 Avenues.
 Public transit access to the arena is provided by the Edmonton Light Rail Transit system (MacEwan station on the Metro Line) and Edmonton Transit Service bus.
Motorpoint Arena Nottingham (originally the Nottingham Arena, formerly the Capital FM Arena Nottingham) is a multi-use indoor arena located within the National Ice Centre in the Lace Market district of Nottingham, England.
 The National Ice Centre and Nottingham Arena were opened by Olympic gold medalist Jayne Torvill on 1 April 2000.
 Since its opening, the arena has hosted over a thousand concerts, comedy acts, family shows and sporting events.
 The arena is the UK’s first twin ice pad facility and centre of excellence for ice sports in the UK.
T-Mobile Arena is a multi-use indoor arena on the Las Vegas Strip in Paradise, Nevada.
 Opened on April 6, 2016, the arena is a joint venture between MGM Resorts International and the Anschutz Entertainment Group.
Malmö Arena is a multi-use indoor arena in Malmö, Sweden, and the home of SHL ice hockey club Malmö Redhawks.
 It is the largest arena in the SHL, and the second-largest indoor arena in Sweden.
 Apart from hosting Redhawks hockey matches, the arena is often the venue for team handball, floorball, concerts, and other events.
 It has also hosted indoor athletics.
 Owned and operated by Parkfast AB, the arena was designed by Mats Matson of MM Matsson Konsult AB, Hannu Helkiö of Pöyry Architects, and Gert Wingårdh of Wingårdh arkitektkontor.
 Naming rights for the venue are owned by Malmö Stad, in a ten-year contract, agreed in 2007.
 Malmö Arena hosted the Eurovision Song Contest 2013 between 14 and 18 May 2013.
DSC Indoor Arena is a description of a new multi-use indoor arena in Dubai, United Arab Emirates that was under construction until construction stopped because of the late-2000s recession.
 Once completed, it will mainly be used for basketball, tennis, ice hockey, and other indoor sports, as well as music concerts.
 It was due to open in 2009 and will have a capacity of 10,000 spectators.
 It is part of the new mixed-use sports city currently being constructed in Dubai, Dubai Sports City and was to host The Legends Rock Dubai tennis tournament starting in 2009.
 It was postponed until 2010.

Question: Which multi-use indoor arena on the Las Vegas Strip opened on April 6, 2016, and was the site of the "Billboard" Music Awards?
Answer: T-Mobile Arena