WALLA WALLA —The Walla Walla Downtown Historic District, roughly bounded by Third Avenue, Rose Street, Palouse Street, and the alley between Alder and Poplar streets, has been listed on the National Register of Historic Places, where it joins other districts and properties that contribute to the rich cultural heritage of Washington state.

The National Register records the tangible reminders of the history of the United States and is the official repository for the documentation of cultural resources worthy of preservation. National Register designation allows property owners to take advantage...