Thanks for confirming about 'umble (as a stepfather pronounced it) I didn't want to have to look it up.
Yes, I've heard about the Mercer. I've just never spent time in Houston. Also heard about the art museums there. Dallas has good art museums (and trying to get better) but what I love are the museums in Fort Worth. And the Botanic Gardens. I'll have to find a link to a conservatory there that just reopened after 3 years. Only seen pictures but it looks spectacular.