We're just back from a trip to Spain. We purchased two multi-museum tickets in Madrid and did not use ONLY the admissions for the Thyssen Museum (the multi-ticket is for Prado, Reina Sofia and Thyssen - but only the Thyssen parts remain unused - ran out of time and energy). We understand they are good for one admission each anytime in the next year. Are you going to Madrid in the next year and interested in visiting this museum? If so, I would happily pass these tickets on to you.