Portal:National Register of Historic Places/Did you know/10


 * ...that the Lumber Exchange Building in Minneapolis, Minnesota (1885) is the oldest remaining building in the United States outside of New York City with 12 or more floors?
 * ...that the once-buried remains of a power canal and flour mills in downtown Minneapolis, Minnesota have been unearthed and are now open as Mill Ruins Park to provide historical interpretation in the area?
 * ...that despite shortages of money during the construction of the Deerwood Auditorium in Minnesota, the building was substantially completed in time for its first event, a lutefisk supper?
 * ...that the Frieda and Henry J. Neils House is Frank Lloyd Wright's only work with marble walls?
 * ...that the Thomas Wilson (pictured), a whaleback freighter, was the last such freighter built without hatch coamings?