New Mexico attractions ?

[JoeH]

In a month or so we will be heading west and passing through southern New Mexico on our way... when we return to the east coast at the end of summer, we will be passing through northern New Mexico.
Any particular attractions you'd recommend for either/both legs of the trip ?

[GMandJM]

The Georgia O'Keeffe Museum in Santa Fe is on my bucket list. (Understandably that might not be everyone's cuppa tea.)

Have a fun trip.