All - Constructed - 1860–1869
| Union Park Congregational Church and Carpenter Chapel |
| United Church Seminary |
| University of Maine Historic District Boundary Increase |
| Upper East Side Historic District (Boundary Increase) |
| U.S. Mint |
| Valley Grove |
| Valley Pike Covered Bridge |
| Van Den Berg, Hendrik J. and Wilhelmina H., Cottage |
| VanDyke-Libby House |
| Van Raalte, Benjamin, House |
| Vassar College Observatory |
| Veranda House |
| Vickers and Schumacher Buildings |
| Victory Theater Building |
| Virginia Union University |
| von Steuben, Baron, Memorial Site |
| Wade, Alexander, House |
| Wagner Free Institute of Science |
| Waldschmidt-Camp Dennison District |
| Waller Hall, Willamette University |
| Walling, Ansel T., House |
| Walnut Street Historic District |
| Ward-Thomas House |
| Warner, Seth, House |
| Warren County Courthouse |
| Warren-Erwin House |
| Warrington Stone Bridge |
| Washburn and Moen North Works District |
| Washington Aqueduct |
| Washington County Courthouse |
| Washington County Courthouse |
| Washington Valley Schoolhouse |
| Waterman Covered Bridge |
| Watkins, J. R., Medical Company Complex |
| Watrous General Store |
| Wawona Covered Bridge |
| Wentworth, Mark F. and Eliza J., House |
| Wentz, Peter, House |
| West Dennis Graded School |
| West End Saloon |
| West, Gen. Francis H., House |
| West View Farm |
| Wheelock, Cyrus, House |
| White Cloud Historic District |
| White, Samuel, House |
| Whitman, Josiah B., House |
| Widows' Home |
| Williams, F. G., House |
| Willis Hall-Carleton College |
| Wilmington National Cemetery |
| Wilson College |
| Windsor |
| Winnemucca Hotel |
| Winslow Chemical Laboratory |
| Wirth, Jacob, Buildings |
| Wissahickon Inn |
| Wiswell Road Covered Bridge |
| Wood County Home and Infirmary |
| Wood End Light Lookout Station |
| Wood, Jeremiah, House |
| Woodlawn Cemetery |
| Woodman Building |
| Woodward Institute |
| Wyatt, George, House |
| Wyolah Plantation |
| Yates-Flora House |
| Zumbrota Covered Bridge |
| Zweibel Farmstead |
Data from United States Park Service and Wikidata