Aging isn't all bad. Things like growing wiser, deepening relationships and developing skills can't be bought -- they can only grow with the gift of time. However, we don't always appreciate all of the gifts time bestows upon us -- namely, wrinkles, sagging skin and hyperpigmentation. These are the signs of time passing we actively try to prevent and avoid. And, it turns out, some cities in America are much, much better than others at doing so.

Realself.com took a look at the things that make a city ideal for looking younger, as well as the things that encourage age, to put together a list of the top 10 most age-defying cities. Click through to see what city holds the key to youth.