With exactly six months to go until the opening ceremony of the 2016 Olympics in Brazil's Rio de Janeiro, here are 16 things you need to know about the historic event.
1 - Rio 2016 will be the first time in Olympic history that a South American country has hosted the Games. The city won its bid in 2009, beating out Chicago, Madrid and Tokyo.
2 - The torch relay will begin on April 21 in the Games' birthplace — Olympia in Greece — before traveling across Brazil for more than 90 days and finishing in Rio on August 5. While in Greece, it will pass through the Eloenas refugee camp, near Athens, where one resident will be selected as a torch bearer.
3 - The opening and closing ceremonies will be held in Rio's Maracanã Stadium, which boasts the world record for the most fans ever to attend a soccer game. Although its current capacity is around 78,000, the stadium squeezed in at least 173,000 fans during the 1950 World Cup final. Maracanã hosted the World Cup final again in 2014.
4 - Around 10,500 athletes from 206 countries are expected to take part in 17 days of the Olympiad, competing across 306 events.
5 - The competition will take place in four different areas: Copacabana, whose world-famous beach will host beach volleyball; Barra, home to the Olympic Park; Deodoro, for aquatics, BMX, and equestrian centers; and Maracanã, which features two large stadiums.
6 - Rugby Sevens makes its debut at the Rio Games, with both the U.S. women's and men's teams considered to be medal contenders. The seven-a-side variant of rugby lasts only 15 minutes per game. The U.S. is a defending rugby champion, of sorts, having won the gold medal in the 15-person version of the game the last time it featured at the Olympics — in 1924.
7 - Golf will return to the Olympics after a 112-year absence. The International Olympic Committee (IOC) decided to reinstate the sport, which previously was played in the 1900 and 1904 Games. The 18 holes in Rio were designed by American golf-course architect Gil Hanse, who is based in Malvern, Pennsylvania.
8 - The Rio games will be the first to feature Olympians born in the year 2000. Rules state that all competitors must have been been born before Jan. 1, 2003, but many sports have other age requirements for health and safety reasons. The youngest competitors are likely to be from diving and gymnastics.
9 - A team of athletes who have been forced to flee their countries will be allowed to compete for the first time. The (IOC) says five to 10 refugees are expected to qualify and compete under the Olympic flag.
10 - The mascot for 2016 is "Vinicius," a yellow and blue creature representing Brazilian wildlife. It resembles a cat or monkey that can fly and has the power to stretch its limbs and body. It is named after Bossa Nova musician Vinicius de Moraes, one of the writers of "The Girl From Ipanema." Rio 2016 organizers say they hope Vinicius will help them raise 1 billion reais ($398 million) in merchandising.
11 - There are 7.5 million tickets, with prices ranging from $40 for some swimming events to almost $3,000 for the best seats at the opening ceremony. Most popular events so far are soccer, basketball, volleyball and handball.
12 - Organizers say they will prepare 60,000 meals per day to feed the athletes. Brazilian staples like rice and black beans and barbecued meat will be accompanied by other local offerings, such as tapioca, pao de queijo (cheese bread) and acai (an Amazonian fruit and so-called superfood).
13 - Rio 2016 is looking for 70,000 volunteers, the first 50,000 of whom have already been selected — mostly from Brazil. The U.S., U.K., Russia, and China comprise most of the other volunteers chosen so far.
14 - Around 85,000 soldiers and policemen will be deployed — the largest security force assembled at any event in Brazil's history and twice as large as the security presence for London 2012.
15 - Rio's taxi drivers, or "taxistas," are being given the chance to sign up for free online English lessons provided by the Rio 2016 Organizing Committee. Drivers are often the first point of contact for fans, and those who take the four-month course will mostly likely be swapping "oi!" for "hi!"
16 - Team USA took 556 athletes to the London 2012 Olympics, second only to the hosts, and is again expected to bring more athletes than all the other visiting nations in Rio. Qualifications are ongoing so the exact number of places is still up for grabs. The U.S. topped the medal table in 2012 with 46 golds and 104 overall — though one was later taken away — and is hoping to better the tally in the summer.