Just a few off the top of my head:
The Beatles, "Rubber Soul"
Van Morrison, "Astral Weeks"
Gram Parsons, "Grievous Angel"
Joni Mitchell, "Blue"
John Coltrane, "Love Supreme"
X, "Wild Gift"
The Band, "Music From the Big Pink"
Big Star, "Radio City"
Miles Davis, "Kind of Blue"
Husker Du, "Zen Arcade"
Freedy Johnston, "Can You Fly?"
PJ Harvey, "Stories From the City, Stories From the Sea"
Thelonious Monk, "Brilliant Corners"
The Clash, "The Clash"
The Replacements, "Let It Be"
New York Dolls, "New York Dolls"
Richard and Linda Thompson, "Shoot Out the Lights"
Neil Young, "Rust Never Sleeps"
All of these took me out and brought me back, but I wasn't the same when I returned.