Yep, Mauna Kea is something like 13k feet from the sea floor, but only 4k from sea level. I wanted to see the top of it, but the road was closed due to snow while we were there! (the Big Island is wild that way) Highest point I've been is probably Mount Mitchell, highest point in NC at over 6k feet. Though, I think I've driven I-70 across Colorado which may have put me over 11,000 feet. I did a "highpointing" trip with my son when he was about 14, we hit the high points in FL, AL, GA, NC, SC and TN. Neat trip idea if you like driving mountain roads and doing a little hiking.
Hmmm... richest and poorest... well, I spent a lot of years living paycheck-to-paycheck as many people do, but I was never homeless or hungry. Total assets on paper... I've been down over $300k (had two home mortgages at the same time right after we moved to FL, but that didn't last long), and presently have zero debt and am up... total assets (including two retirement funds)... probably $950k. Hard to say, as part of that is the house, and the housing market is weird right now. I also own half of a business, and wouldn't even know where to begin trying to value that! We're at significantly less than half of where my wife wants to before we retire!
What's your absolute best decade and year for music? Not necessarily 50's, 60's, 70's or 80's (or beyond)... but, actual 10 year period. For me, it's probably 1967-1977. If I had to pin down a year... probably 1971 or 1972.