3. Check into The Greenbrier - 25 Things Southerners Should Do When They Retire - Southernliving. This classic resort has been welcoming families since 1778, so they have a great deal of experience in making guests feel at home in their luxurious resort in the Allegheny Mountains. The 11,000-acre resort has impeccable gardens as well as golf and tennis. For those who prefer the great indoors, the spa, bowling alley and bunker tour are all fun options.