The Monster Arena

The Monster Arena wasn't anything special, at least looking from the outside. Just a regular, modern stadium. If anything, it was uglier than most, with its massive, thick walls and clunky structure - it was in a dungeon, not in the city, so the visuals were less important, and the architect focused entirely on safety instead.

As for the inside, there were a few differences. First, the seats - there were, without a doubt, much larger, the rows spread apart further, leaving plenty of space for the legs, and for people to pass through. The reason for that was the number of seats - unlike with the regular stadium, the number of spectators was intended to be lower - even if country K wanted to continue using the Arena while allowing civilians to buy tickets after the summit (and they most certainly did), it would be too risky to hold massive scale events with the monsters, due to the safety concerns. Even now, they have already exceeded the number recommended by the experts.