Embracing an inclusive mindset within museums is necessary to further accessibility and transform the role of museums in a changing society to more effectively foster diversity. A brief overview of the history of laws related to people with disabilities and the role of centralized museum associations sets accessibility as a concept within cultural and social structures, and is followed by three case studies that reveal how social norms and attitudes must first change before museum policies and procedures related to accessibility can be implemented effectively. These comparisons show remarkable common ground between institutions on both sides of the Atlantic and across the United States despite significant political and cultural differences. The dialogue presented here can only be a start for a further transatlantic exchange of how to move beyond inclusion as a "box to be ticked" to incorporating it as a fundamental asset in the conception of museum work in the twenty-first century.