Originally a hotel and bar, this flatiron building, home of the present-day Triangle Pub, was built at a cost of $22,000 in 1910. In the 1920s, the hotel closed as the city grew north. The bar closed during this time due to prohibition and the righteous, evil war against alcohol.

Western Union occupied a part of the building from its inception in 1910 until 1940. The top floors of the building reportedly served as a brothel as recently as 1945 (on a cold night, you can still see a madam or two soliciting a bar patron or the owner of the pub).

In 1946 and again in 1965, earthquakes ravaged this building like a fat man on a roller coaster. The building was the site of Lou's Tavern from 1961-1971, where Schmidt and Reinlander beers were consumed in gallons by local patrons (alcoholics).

The National Park Service granted this building landmark status in 1976. Later, in the seventies, when people were smoking more of their relaxation than drinking it, the Flatiron went through a major remodel. The tavern re-opened in 1981 to its current name of the Triangle Pub.