This is included on the Granadatur card, suggested by Rick Steves, as a combo deal that gets you an entry time into the Alhambra Palace, plus admission to a a bunch of monasteries, cathedrals and the like.
Plus six tickets to ride the red buses that wind up the hills and around the city on loop routes. Take your bus rides! Pony up the 1.40 if you don't have the passes. The views are amazing, especially at sunset. The buses themselves are very small, to wind through narrow roads laid out in the Middle Ages (or earlier).
I'd been to cathedrals and the like in Barcelona, Madrid, Toledo and Seville. And when you've seen eight of em, the modern museum sounds like a good break.
I took the C5 bus and walked about 10 minutes to the museum, which is a large modern building and impossible to miss.
Much to my surprise, I had the place to myself. There are four large interactive galleries on the history and culture of the area. The interactive part is Nintendo Wii style, but a little buggy. A staff member came with me to get me going. You stand on the red dots and point at topics and characters to get their stories. English is an option. There are
large walls with panoramic displays and related physical exhibits in front of them. Glass cases with related objects are nearby.
The first two floors each have two of these permanent interactive galleries. The top floor has temporary exhibits.
It's not the Guggenheim or MOMA, but it's good, and the walk back to the center of town along the canal shows hows the locals live, read more