Sports is one of the most popular and popular activities of all kinds. Sport has been of great interest to people across different eras of history, and its importance extends to military, educational and biological aspects. It is an entertaining and enthusiastic way for people to accept and observe in large numbers. 
The emergence of stadiums
The origin of the word stadium came from the city of Olympia in ancient Greece, the Greeks in the sixth century BC practiced many sports, and the work of festivals and religious holidays in the squares. They also used large squares for racing, usually a distance of 192 square meters, and this figure is a fixed unit called a playground, they called the wide sports venues the name of a stadium. The Greek courts were very large and could accommodate a large number of spectators, some of which still exist, such as the 70-year-old Colosseum for various sports.  
The world’s largest stadiums
There are many playgrounds that are great for a large and enthusiastic crowd.
Rongrado May Day Stadium
The stadium is the largest stadium in the world with a capacity of 150,000 spectators. The stadium is located in the center of Pyongyang, the capital of North Korea. It was built in 1989 on the occasion of the 13th World Youth and Student Festival. At present, sports are played such as football, gymnastics, play-offs and national championships. The stadium is designed in the form of a magnolia flower or an umbrella. The design contains 16 ring-shaped brackets.  
Is the world’s largest cricket stadium and the largest stadium in Australia with a capacity of 100,000 spectators. Melbourne Stadium in Australia was built in 1853 and the first cricket game was held in 1854. 
Camp Nou Stadium
Camp Nou can accommodate an audience of 99,354 spectators. It is located in Spain, east of Barcelona. The stadium opened in 1957 with a match between FC Barcelona and Warsaw. The stadium was first established at Barcelona Stadium, and then became Camp Nou, the new stadium. It has a total area of 55,000 square meters and has 105 exits. Barcelona has announced that the stadium’s total capacity will reach 105,000 by 2021.  
Azteca Stadium has 95,500 seats and is located in the city of Santa Ursula in the Mexican capital of Mexico City. The only stadium that hosted the World Cup twice, in 1970 and 1986. The stadium is now used for the games of the Mexican and American teams.  
Azadi Stadium, located in Tehran, the capital of Iran, has a capacity of 100,000 spectators. But the audience was later reduced to 95,225 viewers. The stadium was opened in 1973, and was named Armir in honor of the Shah of Iran, then changed after the revolution to the stadium Azdai. This stadium is the first stadium in the Middle East to host the Asian Games, one of the largest stadiums in North and Central Asia.  
Skore City Stadium
The stadium has a capacity of 94,700 spectators and is located in Johannesburg, South Africa. It was established in 1980 in the place where Nelson Mandela delivered his speech after his release from prison in 1990. The Soccer Stadium is the first football stadium in Africa to host the 2010 World Cup.
Types of sports stadiums
Sports stadiums are widespread in each country, and vary in shape, purpose, and design to suit the type of sport that will be practiced. They can be classified according to several criteria: 
- Function: The stadiums vary in purpose, including remedial courts, such as swimming pools and steam, including professional training or child training. Some stadiums are competitive events, or may be a recreational place for sporting hobbies.
- The shape of the stadium varies depending on the game in which it is played; the rectangular courts are designed for football, basketball and handball. Square courts are gymnastics, wrestling and boxing. The ring court is dedicated to throwing and discarding games, and the ground-level courts are used for athletics. Including what is closed or open.
- Type of sport: sports are diverse, and do not play in one place for different requirements. Sports is a year that can include a large audience such as football and hand. It requires public playgrounds, including special playgrounds such as archery and horseback riding.
- Floor Type: There are green, red, black, silver, rubber or tile courts.
Standards for stadium construction
- In order for the stadium to be suitable for activities, a set of criteria must be observed, including: 
- Capacity: The stadium capacity must be well thought out and fit with the purpose of the building and the level of games hosted. According to the FIFA Football Association, at least 30,000 seats are suitable for most international games and matches, but preferably 40,000.
- The dimensions of the playing field: The dimensions of the arena for the players must not be less than 105 meters * 68 meters. And that there is an area next to the playing field to prepare the players to be dimensions of 125 meters * 85 meters.
- Public Services: The stadium must have 20 units of toilets at least to avoid congestion.
- Seats for VIPs: Assign a set of seats to VIPs with at least 300 seats.
- Press and media: An area of not less than 100 square meters for the press must be provided and a place for television information should be provided for at least 3 square meters each and 25 square meters each.
↑ d. (2016), Sports and Society, Kuwait: Knowledge World, page 5. ↑ Dr. Khaled Tamim Al-Haj (2016), Department of Sports Venues, Jordan: Al-Janadriya for Publishing and Distribution, page 7. ↑ Mark Fenwick, Trygve Bornø, Thierry Favre, and other (2011), UEFA Guide to Quality Stadiums, Switzerland: UEFA, Page 7. ↑ Heather Carswell, Bridget Gleeson, Patrick Kinsella, and others (2016), The Cities Book, Dublin: Lonely Planet Global Ltd, Tony Smart (9-3-2012), “Ten of the world’s best sports venues”, CNN, Retrieved 10-1-2018. ^ ABT Ahmed Haridi (22-4-2016), “Meet the Biggest 5 Stadiums for the World’s Fans”, Journal of the Seventh Day, see it on 10-1-2018. ↑ “Camp Nou .. Amjad Boublourana Square”, Al Jazeera, seen on 9-1-2018. ↑ Tom Dunmore (2011), Historical Dictionary of Soccer, USA: Scarecrow Press, Page 73. ↑ “Tehran”, Tehran University of Medical Sciences. ↑ Michael Hurley (2011), The World’s Most Amazing Stadiums, England: Capstone Global library, Page 20,21. ↑ “Types of Sports Venues”, Egyptian General Union of Sports Professions, accessed on 10-1-2018. ↑ Jim Brown, Ron DelMont, Charles Botta, and others (2007), Football Stadiums: Technical recommendations and requirements, Switzerland: FIFA, Page 60,128,108,26,142,143.