In February, 1962 Marine Colonel John Glenn circled the Earth three times in a NASA craft dubbed Friendship 7. In October, 1998, now a U.S. senator, Glenn returned to space as a payload specialist aboard the shuttle Discovery. At 77, he was the oldest human to venture outside the atmosphere.

It’s a trend I’ve noticed in these retirement books I’m reading. Not going into space (how cool would that be), but visiting the things of one’s past.

So I’m starting a list. It’ll include not only places, but people—maybe even an experience or two—haven’t been on a slalom ski in a while (uh, 40 years).

Will let you know.