Nostalgic for something you've never experienced, you say?
The Roaring Twenties comes to mind.
Perhaps traveling across the deep blue sea to get to the New World and the adventure of settling this country.
Maybe the hot, smokey jazz clubs around 1920-30. Or seeing the Rat Pack live and on stage in Vegas. Certainly the Beatles first shows in America.
I would add news rooms when we had reporters, decent editors, copy girls, Cub Reporters, fields of Remingtons and not one frigging bloody damn Internet connection to be seen.
The motion picture business when we actually made movies; when stars were actually worth a darn, when scripts were well written.