Photo: David Jiménez Llanes, CC BY-SA 3.0 Free historic sites in León
Photo: David Jiménez Llanes, CC BY-SA 3.0 
Photo: Fernando, CC BY-SA 4.0 Casa Botines
Free outside, paid inside
Photo: José Luis Filpo Cabana, CC BY 3.0 Basilica of San Isidoro
Free, alwaysPlaza Mayor
Free, always
Photo: Baltica at English Wikipedia, Public domain Barrio Húmedo
Free, always
Photo: José Luis Filpo Cabana, CC BY 3.0