Built at the intersection of First and Main. The center of town, easy to find, a commanding presence since 1929.

Standard commercial style. Its Wikipedia entry has the usual line: "One of the tallest buildings in Dayton, the Biltmore was considered one of the finest hotels in America, playing host to some of the nation's most powerful and celebrated men in the 20th century, such as John F. Kennedy and Elvis Presley."

Today?

Any guesses?

Congrats! Yes! Senior living.