What are some cool places to see and do in or near salt lake city for people in their mid 60's?

I have relatives going there and are looking for things to do and see in or near the city. After 2-3 days in the city they will head to Moab, Arches National Park, Canyonlands, Durango Colorado, back up to Grand Junction in Colorado, then back to Salt Lake City. They are just looking at what to see in Salt Lake for those couple of nights. They've already got plans for everything else.What are some cool places to see and do in or near salt lake city for people in their mid 60's?
I would recommend:

1. The Tabernacle - Fantastic!

2. Utah Museum of Fine Arts

3. This is the Place Heritage Park

4. Tracy Aviary

5. Great Salt Lake



You can find out info on these on the web but to me these are 5 of the best things to do in SLC.

Also - tell them not to miss the Durango - Silverton train in Durango if they've never done it. Website:

http://www.durangotrain.com/ If they want to do it better make reservations ASAP because it is very popular. It is the coolest way to see the Rockies that I know of.What are some cool places to see and do in or near salt lake city for people in their mid 60's?
Cults and those mormin (sp) combines! LOL. Check some of those out, sounds interesting to me.!