1) My wife, on our first date, at our wedding, and this morning 20 years later.
2) My children, esp. at birth and while sleeping.
3) Delaware Water Gap. We'd been hiking for hours through light rain when we came around the bend and saw the Gap, in late morning, shrouded in mist.
4) Judy Garland as Dorothy (esp. singing "Over the Rainbow"), Carrie Fisher in Star Wars (esp. giving her message to R2D2), LOTR movies (esp. Arwen).