The 23-story, 284-room Blackstone Hotel had its official grand opening on October 10, 1929."

Hilton bought it in 1952. It closed 30 years later and stood vacant for 15 years. Restored at the end of the 90s. They can't do much about its lack of style - sometimes the 20s pretended that utilitarian economy was actually serious modernism - but it's better than another glass block. Also:

Ruth Carter Stevenson, daughter of famed Fort Worth resident Amon G. Carter (first guest of the Blackstone Hotel in 1929), was the first guest of the Courtyard by Marriott Fort Worth Downtown-Blackstone in 1999.

Nice touch.