Commercial building

Marine Supply and Hardware Complex (Skagit County, Washington)
Markert Block Building (Muskogee County, Oklahoma)
Market Building (Habersham County, Georgia)
Market Hall and Sheds (Charleston County, South Carolina)
Market House (Providence County, Rhode Island)
Markle Banking & Trust Company Building (Luzerne County, Pennsylvania)
Marlborough Building (Broome County, New York)
Marmaduke Building (Jefferson County, Kentucky)
Marott's Shoes Building (Marion County, Indiana)
Marquette Building (Cook County, Illinois)
Marquis Opera House (Scotts Bluff County, Nebraska)
Marschner Building (Galveston County, Texas)
Marsh and Powell Funeral Home (Missoula County, Montana)
Marsh--Place Building (Black Hawk County, Iowa)
Marshall Field and Company Store (Cook County, Illinois)
Marshall Field Company Store (Cook County, Illinois)
Marshall--Wells Company Warehouse No. 2 (Multnomah County, Oregon)
Marshfield Elks Temple (Coos County, Oregon)
Marshfield Sun Printing Plant (Coos County, Oregon)
Marston House (East Feliciana Parish, Louisiana)
Marthasville Hardware Building (Warren County, Missouri)
Martin Building (El Paso County, Texas)
Martindale Chief Diner (Columbia County, New York)
Mary Elizabeth Hospital (Wake County, North Carolina)
Maryland Block (Douglas County, Wisconsin)
Mason, William P., House (Bristol County, Massachusetts)
Masonic Block (Middlesex County, Massachusetts)
Masonic Building (Chouteau County, Montana)
Masonic Building (Kerr County, Texas)
Masonic Lodge (Carter County, Missouri)
Masonic Lodge Building (Washington County, Oklahoma)
Masonic Temple (Hennepin County, Minnesota)
Masonic Temple (Duval County, Florida)
Masonic Temple (Cumberland County, Maine)
Masonic Temple (Alameda County, California)
Masonic Temple (Umatilla County, Oregon)
Masonic Temple Building (Wake County, North Carolina)
Masonic Temple Building (Cleveland County, North Carolina)
Massachusetts Avenue Parking Shops (Washington, District of Columbia)
Massachusetts Block (Douglas County, Wisconsin)
Massie Variety Store (Pike County, Illinois)
Mast General Store (Watauga County, North Carolina)
Masters Building (Henry County, Iowa)
Mather Building/Franklin & DeHaven Jewelers (Wood County, West Virginia)
Mathey Building (Oconto County, Wisconsin)
Mathias Willis Store House (Edmonson County, Kentucky)
Matson Building and Annex (San Francisco County, California)
Matt's Place Drive-In (Silver Bow County, Montana)
Mattie Midgett Store and House (Dare County, North Carolina)
Maverick Building (Bexar County, Texas)
Max Baumeister Building (Walla Walla County, Washington)
Max Keil Building (New Castle County, Delaware)
Max Keil Building (New Castle County, Delaware)
May and Cooney Dry Goods Company (Madison County, Alabama)
One of the few extant, glazed terra cotta, commercial buildings in Huntsville
May Company (Cuyahoga County, Ohio)
Mayer Business Block (Yavapai County, Arizona)
Mayer--Bankerob House (Winnebago County, Wisconsin)
Maylie's Restaurant (Orleans Parish, Louisiana)
Maynardville State Bank (Union County, Tennessee)
Mayo Building (Tulsa County, Oklahoma)
Mayo Building (Washington County, Vermont)
Mays General Store (Searcy County, Arkansas)
McAdory Building (Jefferson County, Alabama)
McAlester DX (Pittsburg County, Oklahoma)
McBrayer Building (Okmulgee County, Oklahoma)
McBride--Sims Garage (Utah County, Utah)
McCabe Building (Snohomish County, Washington)
McCain Furniture Store (Boone County, Missouri)
McCammon State Bank Building (Bannock County, Idaho)
McCandless Building (Henry County, Iowa)
McCanna-Hubbell Building (Bernalillo County, New Mexico)
McCarthy Building (Rensselaer County, New York)
McCarthy General Store (Valdez-Cordova Census Area, Alaska)
McClanahan Block (Hardin County, Iowa)
McClellan's General Store (Henry County, Iowa)
McClendon--Abney Hardware Company (Angelina County, Texas)
McClintock Building (Denver County, Colorado)
McClintock Storage Warehouse (San Diego County, California)
McClure House (Fremont County, Colorado)
McClurg Building (Cook County, Illinois)
McConahay Building (Jackson County, Missouri)
McCord--Brady Company (Laramie County, Wyoming)
McCornick Building (Salt Lake County, Utah)
McCoy's Store and Camp (Pulaski County, Missouri)
McCrady's Tavern and Long Room (Charleston County, South Carolina)
McCrory Building (Mahoning County, Ohio)
McDonald's (Multnomah County, Oregon)
Original McDonald's architectural style restaurant built in 1962
McDonald's Golden Arches (Los Angeles County, California)
McDonald's Golden Arches (San Bernardino County, California)
McDougal Filling Station (Craig County, Oklahoma)
McGill Drug Store (White Pine County, Nevada)
McGrath Block (Eau Claire County, Wisconsin)
McGraw-Hill Building (New York County, New York)
McHaffey Opera House (Wapello County, Iowa)
McIntyre Building (Salt Lake County, Utah)
McKee-Vimont Row Houses (Bourbon County, Kentucky)
McKeesport National Bank (Allegheny County, Pennsylvania)
McKelvey--Higbee Co. Buildings (Mahoning County, Ohio)
McKie-Bass Building (Hays County, Texas)
McLachlen Building (Washington, District of Columbia)
McMakin's Tavern (Spartanburg County, South Carolina)
Historic stagecoach stop in Lyman, SC
McMinn Building (Transylvania County, North Carolina)
McNab Bank Building (Barbour County, Alabama)
McNamar Building (Yamhill County, Oregon)
Mead Bank (Waupaca County, Wisconsin)
A Greek Revival-style, commercial building built in 1862
Meadow River Lumber Building (Greenbrier County, West Virginia)
Mechanic Institute (Oxford County, Maine)
Mechanics Building and Loan Company (Richland County, Ohio)
Mechlins Corner Tavern (Hunterdon County, New Jersey)
Mecklenburg Investment Company Building (Mecklenburg County, North Carolina)
Medical Arts Building (Kent County, Michigan)
Medical Arts Building (Newport News, Virginia)
Medical Arts Building (Garland County, Arkansas)
Medical Arts Building (Hamilton County, Tennessee)
Medical Arts Building (Knox County, Tennessee)
Medical Arts Building (Multnomah County, Oregon)
Medical Centre Building (Cuyahoga County, Ohio)
Medical Dental Building (Dallas County, Texas)
Medical Dental Building (King County, Washington)
Medico-Dental Building (San Diego County, California)
Meeker's Hardware (Fairfield County, Connecticut)
Meers Mining Camp (Comanche County, Oklahoma)
Meier & Frank Warehouse (Multnomah County, Oregon)
Meier and Frank Building (Multnomah County, Oregon)
Meier and Frank Delivery Depot (Multnomah County, Oregon)
Meier General Store (St. Charles County, Missouri)
Meigs County Bank (Meigs County, Tennessee)
Meiser Drug Store (Scott County, Iowa)
Meisner Bank Building (Buffalo County, Nebraska)
Mel's Drive-In (Los Angeles County, California)
Mellett-Canton Daily News Building (Stark County, Ohio)
Former newspaper building now serving as a professional office building
Mellus Newspapers Building (Wayne County, Michigan)
Memphis Merchants Exchange (Shelby County, Tennessee)
Memphis Trust Building (Shelby County, Tennessee)
Mendenhall's Bath House (Rogers County, Oklahoma)
Mentzer Building (Lancaster County, Pennsylvania)
Menz Store (De Kalb County, Illinois)
Best known to recent generations as Menz Food Shop, Stu Menz propriter, 100 plus year old building demolished.
Mercantile Bank Building (Craighead County, Arkansas)
Merchants & Farmers Bank (Desha County, Arkansas)
Merchants and Farmers Bank Building (Chickasaw County, Mississippi)
Merchants and Planters Bank (Monroe County, Arkansas)
Merchants and Planters Bank (Lafourche Parish, Louisiana)
Merchants and Planters Bank Building (Jefferson County, Arkansas)
Merchants Bank Building (Providence County, Rhode Island)
Merchants Bank Building (Volusia County, Florida)
Merchants Bank of Ellis (Ellis County, Kansas)
Merchants Building (Wayne County, Michigan)
Merchants National Bank (Ramsey County, Minnesota)
Merchants National Bank (Winona County, Minnesota)
A beautiful Jewel Box Bank except Louis Sullivan didn't design it!
Merchants National Bank and Annex (Marion County, Indiana)
Merchants National Bank Building (Coal County, Oklahoma)
Merchants National Bank of Sacramento (Sacramento County, California)
Merchants Transfer and Storage (Oklahoma County, Oklahoma)
Merchants' and Drovers' Tavern (Union County, New Jersey)
Merchants' National Bank (Poweshiek County, Iowa)
One of Louis Sullivan's "Jewel Box" banks and one of the best preserved.
Meridian Exchange Bank (Ada County, Idaho)
Mermaid Tavern (New Castle County, Delaware)
Merrero Building (Jackson County, Iowa)
Merrill's Store (Carroll County, Mississippi)
Merrimack County Bank (Merrimack County, New Hampshire)
Merritt Bakery (Beckham County, Oklahoma)
Merry's Dairy Barr (Stark County, Ohio)
Mershon Building (Whitley County, Kentucky)
Metals Bank & Trust Company Building (Silver Bow County, Montana)
8 story Neo-classic bank building
Meteer Store House (New Castle County, Delaware)
Meteor City (Navajo County, Arizona)
Metropolitan Block (Allen County, Ohio)
Metropolitan Life Insurance Company (New York County, New York)
Metropolitan Savings Bank (New York County, New York)
Meyer--Kiser Building (Miami-Dade County, Florida)
Michigan Trust Company Building (Kent County, Michigan)
Mid-Continent Life Building (Oklahoma County, Oklahoma)
Middough Brothers--Insurance Exchange Building (Los Angeles County, California)
Mideke Supply Building (Oklahoma County, Oklahoma)
Midland Savings Building (Denver County, Colorado)
Midpoint Cafe (Oldham County, Texas)
Miguel Fernandez Hide Yard (Cameron County, Texas)
Mikulich General Store (Alger County, Michigan)
Milady's Cleaners Building (Tulsa County, Oklahoma)
Milarkey Building (Umatilla County, Oregon)
Miles City Steam Laundry (Custer County, Montana)
Militia Headquarters Building (Bibb County, Georgia)
Milk Bottle Grocery (Oklahoma County, Oklahoma)
Millbrook Diner (Dutchess County, New York)
Classic 50's O'Mahony diner
Miller Block (Spokane County, Washington)
Miller Brothers Building (Fayette County, Kentucky)
Miller Brothers Department Store (Hamilton County, Tennessee)