Lumiose Gym is a prominent location in the Pokémon series, specifically found in the Kalos region. It is known for its unique design, resembling a large, modern building with a circular layout. Trainers challenge the gym to earn the Voltage Badge by defeating its leader, Clemont, who specializes in Electric-type Pokémon. The gym features various puzzles and challenges that trainers must navigate before facing Clemont. Players must demonstrate their skills in battles against other trainers within the gym. Successfully defeating Clemont not only grants the badge but also access to new abilities and opportunities in the game.