The Beltrami County Courthouse, located at 619 Beltrami Avenue in Bemidji, is a three-story red brick and sandstone structure in the Beaux Arts style and the county’s most imposing example of public architecture.

Dr. Herbert Arthur (H. A.) Burns was named superintendent of the Minnesota Sanatorium for Consumptives (Ah-Gwah-Ching) in 1928. Over the next fourteen years, he brought crucial changes to the institution that improved patient care, housing, therapy, and recreation.

The Minnesota and International railway trestle bridge at Blackduck is historically significant for its method of construction and the length of timber required to span Coburn Creek and the surrounding marsh. It is the longest bridge on the former Minnesota & International Railway (M & I) and widely recognized as the railway’s most difficult bridge-building project.

Minnesota's first zoo opened in St. Paul in 1897 with three donated deer in a fenced-in pasture. More than 100 years later Como Zoo continues its mission of animal conservation, education, and family entertainment.

In 1879, lumber baron T. B. Walker invited the public into his downtown Minneapolis home to view his art collection. Over the next century, that collection evolved into the Walker Art Center, a world-renowned site for challenging work by innovative artists, including Andy Warhol, Jasper Johns, Yoko Ono, and Kara Walker.

Katharine Densford was a pragmatic leader of American nursing as it gained political and academic recognition in the 1940s and 50s. She is remembered as a stateswoman whose leadership of Minnesota’s flagship school of nursing at the University of Minnesota provided the model for nursing education throughout the state and nation.

The Church of St. Columba in St. Paul’s Hamline-Midway neighborhood is the only Minnesota work by the Chicago architect Francis Barry Byrne. Architectural historian and critic Larry Millett calls it “a high point of modern church architecture in the Twin Cities.”

Over his long career, the architect Charles A. Hausler had a major impact on the built environment of St. Paul. As the first person to hold the office of city architect, he designed many public buildings, including the three branch libraries funded by Andrew Carnegie. He also designed churches, commercial buildings, and homes in a variety of styles, including Classical Revival, Prairie School, and Art Deco.

Concerned by the anti-Japanese atmosphere in the United States in the 1920s, Dr. Sidney Gulick established the Committee on World Friendship Among Children and began sending friendship dolls to Japan. Japan reciprocated by sending friendship dolls to the US in 1927, with Minnesota receiving a doll known as "Miss Miyazaki."

Izaak Maurits Kolthoff was a professor of analytical chemistry at the University of Minnesota from 1927 to 1962. He published over a thousand papers, wrote more than a dozen books, and created and edited the first comprehensive treatise of analytical chemistry. He also played a key part in the development of synthetic rubber during and after World War II. He is known as the “father of modern analytical chemistry.”