The Strahov Stadium in Prague, Czech Republic, was originally built for displays of synchronized gymnastics on a grand scale. Construction began in 1926 with a wooden structure but this was replaced with concrete grandstands in 1932. Further construction occurred in 1948 and 1975. The field is three times as long and three times as wide as the standard Association football field. It has a capacity for 250,000 spectators making it not only the largest stadium but also the second largest sports venue ever to be built.

The original stadium served as a venue for popular Sokol displays of synchronized gymnastics. Sokol is an all-age gymnastics organization first founded in Prague in 1862 by Miroslav Tyrš and Jindřich Fügner. It was based upon the principle of "a strong mind in a sound body". The organisation continues today attracting younger people for gymnastics and other athletics.

Strahov Statium is no longer in use for the purpose for which it was built, however, it is used as a training centre for Prague's football club Sparta with 8 football pitches - 6 standard size and 2 futsal pitches.

The stadium has been on the list of UNESCO cultural heritage sites since 2003.

All three alternate options are closed - West Ham in 1972, White City in 1983 and J.F. Kennedy in 1992.

More Info: en.wikipedia.org