Collecting antiques and other type of collectibles.
Genealogy research.
Camping & Fishing (fresh & salt water).
Science-fiction (for me). For example: Star Trek, The X-Files, Sliders, Quantum Leap and etc.
Civil war and World War history and the like (mostly Marla's but I'm warming up to it).
Music -  50's, 60's, 70,s and some 80's. Very little 90's. Mostly 70's music. I love mostly for example: (Old) COUNTRY, EASY LISTENING, POP, LITE-ROCK, MOTOWN and some (new) COUNTRY. 
Musicals -  Rodgers and Hammerstein, Andrew Lloyd Webber. I went to the Golden Apple Dinner Theater in Sarasota, FL. in Aug. of 1998 to see the "KING and I" and I was glad I went. It was great!!
Sports, For example: golf (I just started), baseball, bodybuilding, boxing, football, weight-lifting and wrestling. We've also been known to watch... and even attend professional wrestling matches, off and on over the years (strictly for entertainment purposes).