The nonprofit, which aims to "grow Duluth," has rebranded with a focus on "life up north." Its images have earned hundreds of millions of views.

The Split Rock Lighthouse is an octagonal yellow-brick ... This is the oldest active light tower on the Great Lakes. It was authorized in 1810, but not built until 1821, after the War of 1812.

it was decided that a lighthouse was desperately needed. On March 4, 1907, $75,000 was appropriated to build a light and fog signal near Split Rock. Of all the lighthouses on the list, this was ...