This week, we're firing up the official Ultimate Classic Rock time machine to look back at the best rock albums from 20, 30 and 40 years ago. Within these features, you'll see and hear rock music grow up as you travel back in time.

In addition to running down the top albums from 1991, 1981 and 1971, we'll talk to author Scott Miller ('Music: What Happened?') about why 1973 represented the peak of classic rock, look back at some of the most noteworthy musical firings in rock history, and break down David Bowie's space travel song 'Moonage Daydream.'

'Time Travel Week' Publishing Schedule:

Monday, July 18 -- Top 10 Albums of 1991
Tuesday, July 19 -- You're Fired! Top 10 Rockers Booted From Their Bands
Wednesday, July 20 -- Top 10 Albums of 1981
Thursday, July 21 -- David Bowie, 'Moonage Daydream' - Lyrics Uncovered
Friday, July 22 -- Top 10 Albums of 1971
Saturday, July 23 -- Author Scott Miller on 1973 as the Peak of the Classic Rock '70s