ok, tags work, dummy data is problem, i add normal it worked.
Meta title. My mean is “Landmark in chicago, inllionois, united state”. and slug is like you
and i see tab SEO in multilocation not useful
And search page ex: when i search landmark near chicago. Title will be search for:‘landmark’. I think title should be “search landmark near chicago” in your demo will be “search attraction landmark near chicago” and setting meta robot for search page is index and follow (wp default is noindex, nofollow) i think this good for SEO.