Idrætsparken & Parken Stadium

Københavns Idrætspark was inaugurated on 25 May 1911 with a football match between a combined side from B.93 and KB and the English club Sheffield Wednesday, who won 3-2. Later the same year a Danish attendance record of 11,233 was set when a selected Copenhagen team met the Scottish champions Rangers, who won 4-1. The record lasted a little over three years, until Denmark beat England 3-0 in front of 18,500 spectators on 5 June 1914. A rebuilding in 1955 left the ground with a capacity of 50,000. Stadium concerts began there in 1976, Genesis, Gasolin and Dr. Hook being the first performers. The last Denmark international played at Idrætsparken was a 0-2 defeat by Yugoslavia in a European Championship qualifier on 14 November 1990.

A complete renovation of the old national stadium began on 15 November 1990, to a design by the architect Gert Andersson. Three of the four original stands were torn down and rebuilt, at a cost of 640 million Danish kroner. The rebuilding was carried out by the investors Baltica Finans A/S, in return for a guarantee from the Danish Football Association that all national matches would be played at the ground for fifteen years. Over the roughly two years the work took, the site was the second largest in Denmark, exceeded only by the Great Belt bridge. The rebuilt ground opened in September 1992 under the new name Parken, with a friendly against Germany that Denmark lost 1-2. While the work was going on the Danish cup finals of 1991 and 1992 had to be played at Odense Stadion and Aarhus Stadion.

In the autumn of 1993 Parken was included in UEFA's list of four-star stadiums, which made it eligible to host the finals of the Cup Winners' Cup and of the competition then called the UEFA Cup. The Champions League final was beyond it, that fixture requiring 50,000 seats. The Cup Winners' Cup final between Arsenal and Parma was played there in the 1994 season, and on 17 May 2000 Galatasaray and Arsenal drew the UEFA Cup final there goalless. In June 1998 Baltica Finans sold the ground to F.C. Copenhagen for 138 million kroner; the club holds both the stadium and the adjacent office buildings through Parken Sport & Entertainment.

Michael Jackson played Parken on 14 August 1997 on the HIStory tour, with 60,000 tickets sold, and returned on the 29th, when he was given a surprise birthday party after performing "You Are Not Alone". A retractable roof was fitted to the existing structure in 2000 and 2001, in preparation for the Eurovision Song Contest, which the ground hosted in 2001, and to make it a more useful venue in general.

On 2 June 2007 the ground was the scene of a fan attack during a UEFA Euro 2008 qualifier. The concert attendance record is put at about 55,000, set at a Justin Timberlake concert on 23 June 2007. On 5 December 2007, after a match between F.C. Copenhagen and Atlético Madrid, demolition began of the old concrete D stand of 1955, which had been a side stand of the old Københavns Idrætspark. It was replaced in 2009 by a modern VIP stand of about 4,000 places, which brought the capacity for football down to 38,065; the new structure combines a fixed section with a telescopic one that can be packed away for concerts. On 18 March 2023 the owners announced that coordinated jumping would no longer be permitted on the southern B stand, having judged that it took the ground past the load limits it had been approved to.

On 1 May 2014 a stadium-wide Wi-Fi system powered by Telia was announced, giving free high-speed access to spectators at any event there, and the deal carried a seven-year naming sponsorship. The ground was renamed Telia Parken on 17 July 2014. It had been said that the new name would not affect what the football association called the ground for internationals, but at the first home qualifier for the 2016 European Championship, Denmark's 2-1 win over Armenia on 7 September 2014, the association used Telia Parken. F.C. Copenhagen and Telia ended the arrangement on 31 August 2020, a year earlier than originally agreed, and the name reverted to Parken. On 10 November 2021 the stadium entered a long-term partnership with the telecommunications company 3, titled "Parken - Connected by 3", which left the name itself untouched.

Parken was named as one of the twelve host venues for UEFA Euro 2020 and staged three group stage matches and a round of 16 tie. In 2017 Volbeat became the first Danish band to sell out the venue, and their Let's Boogie DVD is of that concert; over the weekend of 21 to 23 June 2024 Minds of 99 played three stadium concerts in a row there, the first Danish band to do so. The stadium is owned by the listed company Parken Sport & Entertainment A/S, which lets it for football and for entertainment events, while the land beneath it belongs to the City of Copenhagen under a reversion obligation that runs to 2060. For concerts it holds up to 50,000 with an end stage and 55,000 with a centre stage.