One decade ago, the World Health Organization (WHO) founded its Global Network for Age-Friendly Cities and Communities (WHO, 2018). The launch of the network followed WHO-sponsored qualitative research in 33 communities to assess the views of older adults and other stakeholders concerning characteristics of age-friendly cities, culminating in a guide for establishing such cities (WHO, 2007; see also Plouffe & Kalache, 2010). The initial guiding framework was “active aging,” shifting in 2015 to “healthy aging” (WHO, 2018). Both frameworks emphasize multiple dimensions, including physical (indoor and outdoor), economic, social, and health care environments. They also recognize the importance of using a life-span perspective, considering diversity among older adults, and accounting for the influence of cultural and economic inequity on access to resources. The initial emphasis was on cities, but there is increasing emphasis on the broader notion of age-friendly environments. The Global Network focuses on political and economic processes to achieve age-friendliness. In its 2018 report, the WHO defined successful outcomes in terms of improved functioning of older people, resulting in longer and fewer inequities in healthy life expectancies. However, the report noted continuing knowledge gaps that could guide communities in determining best practices and tools for achieving these aims.