Watching the game, having a puzzle

Question

_{This puzzle is part 7 of Gladys' journey across the globe. Each part can be solved independently. Nevertheless, if you are new to the series, feel free to start at the beginning: Introducing Gladys.}

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Dear Puzzling,

Today I went to see a football game at the local stadium. The atmosphere was loud and intense – one can clearly tell that the people here are passionate about the sport. I have to say I enjoyed the game, even though I had never even heard of either team beforehand. I'm tired and must get to bed now. Long flight tomorrow.

Wish you were here!
Love, Gladys.

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_{Gladys will return in "A cryptic tricolour".}

Answer 1

Gladys is visiting

Estadio Garcilaso

The full nonogram:

And if we split and rearrange like this:

Then

Read the blue part, then the red part. The purple is the mixture of them.