Colosseum - Rome
Wikipedia: the Colosseum was used for gladiatorial contests and public spectacles. As well as the gladiatorial games, other public spectacles were held there, such as mock sea battles, animal hunts, executions, re-enactments of famous battles, and dramas based on Classical mythology.
For more Dutch information:
http://nl.wikipedia.org/wiki/Colosseum and in English:
http://en.wikipedia.org/wiki/Colosseum