Lowdown on Rio 2016
2016 Olympics: August 5-21
Paralympics: September 7-18.
City: Rio de Janeiro, capital of Brazil until 1960.
Population: 6-7 million (centrally) and 10-13 million for metropolitan area.
Weather: Average annual temperature is 23 degrees Celsius.
Currency: Brazilian Real. Three Real = 1 euro.
Time difference: Two hours behind Ireland.
New Olympic sports for 2016: Golf and rugby Sevens.
1 Maracana: Includes the legendary 80,000+ Maracana soccer stadium, plus the Joao Havelange Stadium (home to Botafogo FC) and the historic Sambodromo, home to Rio's annual Carnival, which will host archery and the marathon.
2 Copacabana: The most famous stretch of sand in the world will host beach volleyball; the surrounding area, including Flamengo Park, will host a raft of sports, including cycling, racewalking, triathlon, sailing and rowing.
3 Barra de Tijuca: 'Barra' will be home to the athlete villages, golf, tennis, the aquatic centre and the velodrome, plus a huge variety of sports in a series of specially adapted exhibition centres (like London's Excel Arena), including boxing, gymnastics, badminton and basketball.
4 Deodoro: Home to the largest concentration of military personnel (60,000) in South America. Already has sports facilities which were developed for the 2007 Pan-Am Games, including shooting, equestrian, modern pentathlon, slalom canoeing and BMX.