Legend has it that this park is named for the golden head of Christ that is hidden somewhere on site. Unbelievable? Well, so is this park that covers more than 105 hectares and has a zoo, a 5-hectare rose garden and enormous greenhouses filled with exotic species—not to mention a mysterious island! This park is considered to be the "lung" of Lyon and is so popular that sometimes during weekends, joggers, families with push chairs and cyclists have trouble finding enough space. Admission is free.