VAN DUSEN MANSION

Year built: 1892.

Location: 1900 LaSalle Av. S., Minneapolis.

Size: The three-story, 12,000-square-foot home has five bedrooms and seven bathrooms; the two-story carriage house has 3,600 square feet, and the 1961 one-story classroom addition has 3,400 square feet.

Cost to build: $45,000.

Architect: Edgar Joralemon.

Exterior: Pink Sioux quartzite quarried in Luverne, Minn.

Number of windows: 144.

Why it's on the National Register of Historic Places: Despite the 1961 addition that altered its exterior, the building retains most of the original features and is a unique example of the architect's interpretation of the late 19th-century Richardsonian Romanesque and French Renaissance styles.