Something as simple as the smell of fresh cut grass is one of the most cherished things any of us living abroad look forward to experiencing on a rare occasion. There's not much mowed grass in Rome: there's the cortile or giardino of the Angelicum or the cortile of the Vatican Museums.
Offer a prayer my neighbor will hire me to mow her lawn once each week. I'm going to offer my services as I miss mowing, and the smell! She's a widow and a nice Englishwoman with a big giardino (yard). Hope to get a good opportunity to ask her, Deo volente.