Built during 1890s

Moss Ledge (Franklin County, New York)
Mossman, Col. Adelbert, House (Middlesex County, Massachusetts)
Mote--Morris House (Lake County, Florida)
Mother of Sorrows Church (Ashtabula County, Ohio)
Mount Adams Public School (Hamilton County, Ohio)
Mount Calvary Baptist Church (Orange County, Virginia)
Mount Horeb Baptist Church (Montgomery County, Missouri)
Mount Lowe Railway (Los Angeles County, California)
Mount Pleasant Methodist Church (Scott County, Arkansas)
Mount Pleasant School (St. Louis, Missouri)
Mount Royal Station (Baltimore, Maryland)
Mount St. Gertrude Academy (Boulder County, Colorado)
Mount Vernon Commercial District (Rockcastle County, Kentucky)
Mount Zion A.M.E. Church (Marion County, Florida)
Mount Zion Baptist Church (Calhoun County, Alabama)
Mountain Avenue Station (Essex County, New Jersey)
Mountain Iron Mine (St. Louis County, Minnesota)
Mountz House (De Kalb County, Indiana)
Mowers' Block (Essex County, Massachusetts)
Mrs. B. F. Williamson House (Darlington County, South Carolina)
Mrs. Lydia Johnson House (Jackson County, Iowa)
Mrs. M. P. Sargent House (Mohave County, Arizona)
Mrs. Preston B. Plumb House (Lyon County, Kansas)
Mt. Carmel School and Church (Kane County, Utah)
Mt. Horeb Opera Block (Dane County, Wisconsin)
Mt. Olive Methodist Episcopal Church (Loudoun County, Virginia)
Mt. Pleasant Methodist Church (Lowndes County, Mississippi)
Mt. Pleasant School (Berkeley County, West Virginia)
Mt. Tabor Good Samaritan Lodge #59 (Anne Arundel County, Maryland)
Mt. Tabor Methodist Episcopal Church (Anne Arundel County, Maryland)
Mt. Vernon Methodist Church (Scott County, Virginia)
Mt. Zion Church and Cemetery (Henry County, Tennessee)
Muheim House (Cochise County, Arizona)
Mule Barn Theatre (Atchison County, Missouri)
Mulford T. Hunter House (Wayne County, Michigan)
Mulhall United Methodist Church (Logan County, Oklahoma)
Mullendore House (Pike County, Mississippi)
Munger Terrace (St. Louis County, Minnesota)
Munroe, Horace, House (Androscoggin County, Maine)
Munroe, Sarah, Three-Decker (Worcester County, Massachusetts)
Munson Building (Buchanan County, Iowa)
Murray Downtown Historic District (Salt Lake County, Utah)
Murray Hill Station (Union County, New Jersey)
Musgrove Block (Essex County, Massachusetts)
Music Hall (Hunterdon County, New Jersey)
Myler House (Benton County, Arkansas)
Myles Standish Monument (Plymouth County, Massachusetts)
Mylius--Eaton House (Woodbury County, Iowa)
Myrene Apartment Building (Washington, District of Columbia)
Mystic Theater (Licking County, Ohio)
N. S. Nielson House (Sanpete County, Utah)
Nahant Civic Historic District (Essex County, Massachusetts)
Nando Felty Saloon (Boyd County, Kentucky)
Napoleon Bonaparte McCanless House (Rowan County, North Carolina)
Napoleon Rice House (Douglas County, Oregon)
Narciso Valdez House (Mora County, New Mexico)
Nashville Union Station and Trainshed (Davidson County, Tennessee)
Nathan C. Ricker House (Champaign County, Illinois)
Nathan Loeb House (Multnomah County, Oregon)
Nathaniel Curry House (Douglas County, Oregon)
Nathaniel H. Burt House (Leavenworth County, Kansas)
Nathaniel J. Williams House (Summit County, Utah)
Nathaniel West Buildings (Multnomah County, Oregon)
National Cathedral (Washington, District of Columbia)
National City Bank (New York County, New York)
National Foundry and Machine Company (Jefferson County, Kentucky)
National Musical String Company (Middlesex County, New Jersey)
National Park Seminary Historic District (Montgomery County, Maryland)
National Tobacco Work Branch Stemmery (Jefferson County, Kentucky)
National Tobacco Works Branch Drying House (Jefferson County, Kentucky)
National Tobacco Works Warehouse (Jefferson County, Kentucky)
National Transit Building (Venango County, Pennsylvania)
National Union Building (Washington, District of Columbia)
Natoma Presbyterian Church (Osborne County, Kansas)
Natural History Building (Champaign County, Illinois)
Naugatuck Center Historic District (New Haven County, Connecticut)
Naulakha (Windham County, Vermont)
Navajo County Courthouse (Navajo County, Arizona)
Nazareth Convent and Academy (Cloud County, Kansas)
Nazareth House (Monroe County, New York)
Neblett Place Farm (Dickson County, Tennessee)
Nebraska Telephone Company Building (Lancaster County, Nebraska)
Neely House (Morgan County, Indiana)
Nehemiah P. Clarke House (Stearns County, Minnesota)
Nehs Flour Mill (Waukesha County, Wisconsin)
Neill-Mauran House (Philadelphia County, Pennsylvania)
Neilson House (Alachua County, Florida)
Nellie and Thomas Knotts House (Polk County, Iowa)
Nellie Johnstone No. 1 (Washington County, Oklahoma)
Nels A. Holmes Farmstead (Iron County, Michigan)
Nels A. Nelson House (Salt Lake County, Utah)
Nels and Minnie Jenson House (Box Elder County, Utah)
Nelson County Courthouse (Nelson County, Kentucky)
Nelson School (Washington County, Minnesota)
Nelson Tenement (Jackson County, Mississippi)
Nemaha County Courthouse (Nemaha County, Nebraska)
Nephi and Annie Kindred House (Utah County, Utah)
Ness County Bank (Ness County, Kansas)
Nestor P. Eaton House (Socorro County, New Mexico)
Netcott--Pfeiffer House (Butler County, Iowa)
Netherwood Station (Union County, New Jersey)
Neville House (Mobile County, Alabama)
New Bern Municipal Building (Craven County, North Carolina)
New Brick--The Brick Saloon (Pitkin County, Colorado)
New Canal Lighthouse (Orleans Parish, Louisiana)
New Carroll House Hotel (Poweshiek County, Iowa)
New Century Club (New Castle County, Delaware)
New England Building (Cuyahoga County, Ohio)
New Enterprise Tobacco Warehouse (Jefferson County, Kentucky)
New Era Building (Lancaster County, Pennsylvania)
New Era Building (Jackson County, Iowa)
New Fort Brady (Chippewa County, Michigan)
New Germantown Covered Bridge (Perry County, Pennsylvania)
Covered bridge over Shermans Creek on TR 302
New Hanover County Courthouse (New Hanover County, North Carolina)
New Hope Presbyterian Church (Brunswick County, North Carolina)
New Hope Primitive Baptist Church (Ray County, Missouri)
New Kensington Downtown Historic District (Westmoreland County, Pennsylvania)
New Kensington Production Works Historic District (Westmoreland County, Pennsylvania)
New Logus Block (Multnomah County, Oregon)
New Market Hotel and Store (Scott County, Minnesota)
New Ogeechee Missionary Baptist Church (Chatham County, Georgia)
New Opera House (Nemaha County, Nebraska)
New Oxford Train Station Museum (Adams County, Pennsylvania)
Built in 1892 by Western Maryland Railroad this station now serves as a RR museum
New Riding Club (Suffolk County, Massachusetts)
New Salem United Methodist Church (Knox County, Tennessee)
New Vienna Stone Elevated Water Tank (Dubuque County, Iowa)
Stone water tower that served the community until 1983
New Washington Normal School (Clark County, Indiana)
School built in 1894
New York Botanical Gardens (Bronx County, New York)
New York Public Library (New York County, New York)
New York Public Library and Bryant Park (New York County, New York)
New York Savings Bank (New York County, New York)
New York State Armory (Dutchess County, New York)
New York Yacht Club (New York County, New York)
Newberry House (Pitkin County, Colorado)
Newkirk Central Business District (Kay County, Oklahoma)
Historic Business District
Newland House (Orange County, California)
Newman Block (La Plata County, Colorado)
Newman House (Gallatin County, Montana)
Newry Historic District (Oconee County, South Carolina)
Historic textile mill village district in Oconee County, SC
Newton Copeland Richards House (Shelby County, Tennessee)
Newton Cottage Hospital Historic District (Middlesex County, Massachusetts)
Newton House (Clarke County, Georgia)
Newton Seymour Tubbs House (Custer County, South Dakota)
Newton Street Railway Carbarn (Middlesex County, Massachusetts)
Newtonville United Methodist Church (Albany County, New York)
Niagara Camp (Tuolumne County, California)
Niagara Falls Armory (Niagara County, New York)
Niblock--Yacovetta Terrace (Denver County, Colorado)
Nichelini Winery (Napa County, California)
Nicholas County Courthouse (Nicholas County, West Virginia)
Nicholas Koester Building (Scott County, Iowa)
Nicholas O. Walden House (Clackamas County, Oregon)
Nichols Memorial Library (Rockingham County, New Hampshire)
Nichols, John F., House (Middlesex County, Massachusetts)
Nicolet Public School (Outagamie County, Wisconsin)
Romanesque Revival school designed by local architect, Phillip Dean
Niels Petersen House (Maricopa County, Arizona)
Nielsen Farm (Lincoln County, Kansas)
Niles, Louville V., House (Middlesex County, Massachusetts)
Niles, Louville, House (Middlesex County, Massachusetts)
Nine Hearths (Warren County, Kentucky)
Ninth Avenue Historic District (Spokane County, Washington)
Ninth District Lighthouse Depot (Berrien County, Michigan)
Niotaze Methodist Episcopal Church (Chautauqua County, Kansas)
No. 12 School (Crawford County, Arkansas)
No. 206 Hall of Tell City Lodge IOOF (Perry County, Indiana)
Noah Edward Edgerton House (Johnston County, North Carolina)
Noah Moore House (Clarke County, Mississippi)
Noble Horse Barn (Owyhee County, Idaho)
Noblesville Milling Company Mill (Hamilton County, Indiana)
Former industrial building now converted to residential housing
Nolin Banking Company (Hardin County, Kentucky)
Nolte--Rooney House (Brewster County, Texas)
Nonnenmacher Bakery (Calhoun County, Alabama)
Nook, The (York County, Pennsylvania)
Norburn Terrace (Wake County, North Carolina)
Nordre Trefoldegheds Menigheds (Walsh County, North Dakota)
NORMAN (shipwreck) (Presque Isle County, Michigan)
Norman Brimhall House (Navajo County, Arizona)
Norman No. 1 Oil Well Site (Wilson County, Kansas)
Normandie Apartments (Douglas County, Nebraska)
North Abington Depot (Plymouth County, Massachusetts)
North Baltimore Town Hall (Wood County, Ohio)
North Brentwood Historic District (Prince George's County, Maryland)
North Broad Street Historic District (Essex County, New Jersey)
North Carolina Executive Mansion (Wake County, North Carolina)