The Tenino sandstone French Renaissance château of Henry Pittock

Situated on an expanse in the West Hills, Pittock Mansion was built in 1914 by London-born publisher Henry Pittock as a private home for himself and his wife, Georgiana Burton Pittock, a passionate gardener. Construction started in 1909 and finished in 1914. The 46-room estate is built of Tenino sandstone in the French Renaissance style and is surrounded by formal gardens reflecting Georgiana's role as a founding member of the Portland Rose Society. The mansion also played a role in the 1977 romance film First Love and the 1982 slasher film Unhinged.

But it was also the site of a political scandal in 1911 when Portland City Council member Will H. Daly brought public attention to Pittock having arranged for a water line to the construction project at city expense. Henry and Georgiana remained in the mansion until 1958, when Eric Ladd and Peter Gantenbein put the estate on the market. The community rallied to save the mansion, and it now stands as a museum open for tours.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons