Barcelona thrashed Real Madrid in the Clasico to reach the Champions League semi-finals, while a packed Nou Camp set a new attendance record for a women's football match.
The hosts led 3-1 going into the second leg, then fought back from a 2-1 deficit to win 5-2 on the night for an 8-3 aggregate triumph.
The stunning victory was seen by 91,553 people inside the stadium, smashing the previous attendance record established during the 1999 World Cup final between the United States and China.
When Maria Pilar Leon's cross bounced in after eight minutes, Barcelona appeared to have decisively ended the tie, but Real responded quickly and threatened an upset.
Following a handball by Irene Paredes, Olga Carmona converted from the penalty spot, and Claudia Zornoza's magnificent shot put them up immediately after the halftime.
Aitana Bonmati and Claudia Pina scored in quick succession to put Barcelona back in charge, before Alexia Putellas and Caroline Graham Hansen added gloss to their victory against their Spanish rivals.
In the final four, the reigning champions will meet either Arsenal or Wolfsburg.
The Women's Champions League quarter-finals will be broadcast live on the internet.
El Clasico lives up to its legendary status.
Barcelona's home games are mainly held at the Johan Cruyff Stadium, which has the greatest average attendance in the Spanish first division (2,938).
This was not their first visit to the Nou Camp, but it was the club's first time selling out Europe's largest stadium, with all 99,354 tickets sold out.
However, the official attendance was 91,553, breaking the previous record of 90,195 set in the Rose Bowl in Pasadena 23 years ago - and significantly surpassing the previous high of 60,739 people set at Atletico Madrid's Wanda Metropolitano in 2019.
Alex Scott, a former Arsenal and England defender, told DAZN that the atmosphere gave her "goosebumps."
"It's fantastic to watch the response the team bus had as it came in, the energy," she remarked.
"When I arrived, I remembered how many times we used to play Barca next door in front of a couple of hundred people. The fact that this game is being played here demonstrates how far the game has progressed."
What followed was a thrilling match between two of football's most ferocious rivals that lived up to the hype.
When Leon's in-swinging cross from the right curled over Real Madrid goalkeeper Misa Rodriguez and into the far corner to put Barcelona ahead, the home crowd was ecstatic.
As the Nou Camp collapsed into a thunderous cauldron of uproar, Carmona showed amazing coolness to keep her nerve and strike the bottom corner from the spot.