MEO Arena
Parque das Nações, Portugal · built 1996
MEO Arena (formerly Altice Arena, also referred to by its former name, Pavilhão Atlântico) is a multi-purpose indoor arena in Lisbon, Portugal. The arena is among the largest indoor arenas in Europe and the largest in Portugal with a capacity of 20,000 people and was built in 1998 for Expo '98.
Arena data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).