Emirites Stadium, London:
Craven Cottage, London, home of Fulham FC. On the banks of the Thames in Hammersmith, it doesn't look like anything special and has >20k capacity, however this is a very cool stadium purely because it's a throw back to the early 20th century stadiums. Inside it looks like something from pre WWII - the only thing it's missing are terraces, it also has a cottage, yes a cottage in one corner, hence the name:
St James' Park, Newcastle - this one cracks me up due to the massive discrepancies in the size of the stands:
Estádio do Maracanã, Rio de Janero, to this day it's hold the record for the most spectators in a stadium with 200,000 in the 1950 World Cup, these days it's fully seated and safety is a concern so the capacity is around 82,000.
Proposed Auckland Waterfront Stadium, fuck you Eden Park: