Emirates Stadium (Arsenal): €132M
Arsenal made the tough decision to leave Highbury and build an entirely new stadium in London in 2006. The new, state-of-the-art ground in Holloway eventually be came to known simply as "The Emirates." It holds over 60,000 people, and features huge murals on the outside of 32 legends locking arms, effectively "embracing" the stadium. Arsenal fans fill the stadium regularly, and ideas of expanding even further are a constant discussion.
Santiago Bernabeu (Real Madrid): €129.8MIt wouldn't be a rankings list if Barcelona and Real Madrid weren't right next to each other. The Spanish capital's favored team wins this race, as the Santiago Bernabeu and its' 81,000+ capacity generated €129.8M in matchday revenue from 2014/15. Not to be outdone by their rivals, Real Madrid have also announced a massive new expansion/renovation in the works. It's always a race between the two La Liga giants.
Camp Nou (Barcelona): €116.9MThe largest stadium in Spain in terms of capacity, the Camp Nou holds nearly a whopping 100,000 Blaugrana faithful. It opened in 1957 and has had a number of renovations and expansions. Being that they're Barcelona, even more renovations are on the horizon, too. Those are expected to cost a paltry £495 million
Old Trafford (Manchester United): €114MThe Red Devils have been tenants of Old Trafford all the way back to when construction was completed in 1910. The capacity is simply massive at more than 75,000 following several expansions, and there are more planned. Nicknamed "The Theatre of Dreams," Old Trafford has hosted finals in several different sports
Stamford Bridge (Chelsea): €93.1mA third Premier League stadium, Stamford Bridge, cracks the top 5. Located in Fulham, London, Chelsea's home underwent renovations in the early 1900s and again in the 1990s and holds just shy of 42,000. Chelsea owner Roman Abramovic has stated a desire to expand, but restricted space has made it difficult. Eventually they're expected to get it done, though.
Allianz Arena (Bayern Munich): €89.8MSome folks think the Allianz Arena's color-changing facade is too gimmicky, but 70,000+ still flock to the stadium regularly. The Allianz has played host to World Cup matches, a Champions League final as well as being the home of German powerhouses Bayern Munich.
Parc des Princes (Paris St. Germain): €78MParis St. Germain's home since 1974, Parc des Princes (translated to Princes' Park) sits in the middle of a sporting hub in Paris. Adjacent to the park is the Stade Jean-Bouin (seen to the upper right in the picture), and the historic Roland Garros tennis facility is within walking distance. The Paris City Council actually owns the ground, but PSG recently extended their lease on the ground to 2043. A series of renovations from PSG from 2012-16 saw €75 million in upgrades done to the Parc des Princes, and they have future designs to bump capacity up to 60,000
Anfield (Liverpool): €75MOne of the most storied grounds in all of football, Anfield opened all the way back in 1884. It has undergone a number of renovations and expansions to accommodate the Liverpool faithful, and the Kop stand remains one of the most iconic fan sections around. The Main stand expansion (completed just this year) boosted the ground's capacity to just over 54,000.
Etihad Stadium (Manchester City): €57MOpened in 2003, the Etihad Stadium in Manchester expanded in 2014-15 to add almost 8,000 more seats. Given the success that Manchester City have enjoyed, all those extra seats were likely a wise investment -- for both the club and the fans.