An indoor arena from 1963 with an unusual look - it resembles a U.F.O. It is dedicated to sports and recreation and boasts up to 3500 seats.
Wikipedia https://fr.wikipedia.org/wiki/Palais_des_sports_de_Saint-Nazaire
Address Saint-Nazaire 44600, France
Coordinates 47°16'16.83" N -2°13'46.16" E
