Commercial building

Chong's Cafe (Pueblo County, Colorado)
Chouteau Building (St. Louis, Missouri)
Chris Jorgenson Studio (Mariposa County, California)
Christian Bunge Jr., Store (Houston County, Minnesota)
Christian Dick Block (Dane County, Wisconsin)
Christian Sachau Saloon (Buchanan County, Missouri)
Christopher C. Layman Law Office (Sandusky County, Ohio)
Christopher Paulus Building (Marion County, Oregon)
Chrysler Building (New York County, New York)
Church Furniture Store (Habersham County, Georgia)
Cindy's Diner (Allen County, Indiana)
Circle Inn Malt Shop (Crawford County, Missouri)
Circle, The (Portsmouth, Virginia)
Citizen's and Southern Bank Building (Fulton County, Georgia)
Citizen's State Bank (Sequoyah County, Oklahoma)
Citizens and Southern National Bank of South Carolina (Charleston County, South Carolina)
Citizens Bank (St. Joseph County, Indiana)
Citizens Bank (Rock County, Wisconsin)
Citizens Bank (Levy County, Florida)
Citizens Bank and Trust Company Building, Former (Haywood County, North Carolina)
Citizens Bank Building (Payne County, Oklahoma)
Citizens Bank Building (Yancey County, North Carolina)
Citizens Bank Building (Okmulgee County, Oklahoma)
Citizens Bank of Lafourche (Lafourche Parish, Louisiana)
Citizens Bank of Vidalia (Toombs County, Georgia)
Citizens Bank Tower (Oklahoma County, Oklahoma)
Citizens Banking Company (Appling County, Georgia)
Citizens Building (Garland County, Arkansas)
Citizens National Bank (Vanderburgh County, Indiana)
Citizens National Bank (Wood County, West Virginia)
Citizens National Bank (Erie County, New York)
Citizens National Bank Building (Garfield County, Colorado)
Citizens National Bank of Latrobe (Westmoreland County, Pennsylvania)
Citizens National Life Insurance Building (Jefferson County, Kentucky)
Citizens State Bank (Oklahoma County, Oklahoma)
Citizens State Bank (Gooding County, Idaho)
Citizens State Bank (Oklahoma County, Oklahoma)
Citizens State Bank (Anne Arundel County, Maryland)
Citizens State Bank of Gillett (Oconto County, Wisconsin)
Citizens State Bank of Henry (Codington County, South Dakota)
Citizens' National Bank (Nobles County, Minnesota)
Citizens' Trust Company Building (Vigo County, Indiana)
City Bank Building (Jackson County, Missouri)
City Blacksmith Shop (Redwood County, Minnesota)
City Club Building (St. Louis, Missouri)
City Garage Yard and Fire Drill Tower (Durham County, North Carolina)
City Market (Petersburg, Virginia)
City Market (Pike County, Missouri)
City Market (Marion County, Indiana)
City Market (Dane County, Wisconsin)
City National Bank (Galveston County, Texas)
City National Bank (Tuscaloosa County, Alabama)
City National Bank Building (Harris County, Texas)
City National Bank Building (Cerro Gordo County, Iowa)
City National Bank Building (Stark County, Ohio)
City National Bank Building (Miami-Dade County, Florida)
City of Paris Building (San Francisco County, California)
City Opera House (Grand Traverse County, Michigan)
City Park Brewery (Philadelphia County, Pennsylvania)
City Pharmacy (Webster County, Nebraska)
City Tavern (Washington, District of Columbia)
City Veterinary Hospital (Tulsa County, Oklahoma)
Clamshell Diner (Muscatine County, Iowa)
Clanton's Cafe (Craig County, Oklahoma)
Clapp, Charles Q., Block (Cumberland County, Maine)
Clapp-Cunningham Building (Lincoln County, Oklahoma)
Claremore Auto Dealership (Rogers County, Oklahoma)
Clarendon Motor Company Building (Donley County, Texas)
Clark Hardware Company Building (Fayette County, Kentucky)
Clark--Dearstyne--Miller Inn (Rensselaer County, New York)
Clarke & Courts Building (Harris County, Texas)
Clarks Grove Cooperative Creamery (Freeborn County, Minnesota)
Clarkson Office Building (St. Lawrence County, New York)
Claudette's 1921 Diner (Worcester County, Massachusetts)
Clay City National Bank Building (Powell County, Kentucky)
Claypool & Co. (San Bernardino County, California)
Clayton Banking Company Building (Johnston County, North Carolina)
Clements State Bank Building (Redwood County, Minnesota)
Cleveland Arcade (Cuyahoga County, Ohio)
Cleveland Discount Building (Cuyahoga County, Ohio)
Cleveland Law Range (Spartanburg County, South Carolina)
Historic commercial building in Spartanburg, SC
Cleveland Packard Building (Cuyahoga County, Ohio)
Cleveland Trust Company (Cuyahoga County, Ohio)
Cliff House (El Paso County, Colorado)
Cliff House (San Bernardino County, California)
Clines Corners (Torrance County, New Mexico)
Clinton-Rosekrans Law Building (Chenango County, New York)
Cloquet-Northern Office Building (Carlton County, Minnesota)
Clossman Hardware Store (Muskingum County, Ohio)
Cloud State Bank (Hamilton County, Illinois)
Club Diner (Middlesex County, Massachusetts)
Club Harbor (Fond du Lac County, Wisconsin)
Clune Building (Miami-Dade County, Florida)
Clydes Diner (Cuyahoga County, Ohio)
Co-operative Block Building (Dawes County, Nebraska)
Coachella Valley Savings No. 1 (Riverside County, California)
Coal House (Mingo County, West Virginia)
Coalmont Bank Building (Grundy County, Tennessee)
Cobb Building (King County, Washington)
Coca-Cola Building (Jackson County, Missouri)
Coffin Shop (Sumter County, Alabama)
Col. J. A. Banks House (Calhoun County, South Carolina)
Col. Jacob Yoes Building (Crawford County, Arkansas)
Col. Thomas Deye Owings House (Bath County, Kentucky)
Cole Block (Oxford County, Maine)
Cole-Hatcher-Hampton Wholesale Grocers (Muscogee County, Georgia)
Colebrook Store (Litchfield County, Connecticut)
Coleman-Banks House (Greene County, Alabama)
A historic Greek Revival style house in Eutaw, Alabama.
Coley Building (Mobile County, Alabama)
College Block Building (Johnson County, Iowa)
College Inn Bar (Converse County, Wyoming)
Collins Block--Aspen Lumber and Supply (Pitkin County, Colorado)
Collins Building (Suffolk County, Massachusetts)
Collins Diner (Litchfield County, Connecticut)
Colman Building (King County, Washington)
Colombo Building (San Francisco County, California)
Colonial Beacon Gas Station (Middlesex County, Massachusetts)
Colonial National Bank (Roanoke, Virginia)
Colony's Block (Cheshire County, New Hampshire)
Colorado Building (Pueblo County, Colorado)
Colorado National Bank Building (Denver County, Colorado)
Colton's Block (Worcester County, Massachusetts)
Columbia Building (Jackson County, Missouri)
Columbia Building (Franklin County, Ohio)
Columbia Southern Hotel (Wasco County, Oregon)
Columbian Building (Shawnee County, Kansas)
Columbian Mutual Tower (Shelby County, Tennessee)
Columbus Savings and Trust Building (Franklin County, Ohio)
Columns, The (Leon County, Florida)
Colvos Store (King County, Washington)
Combs-Worley Building (Gray County, Texas)
Comeau Building (Palm Beach County, Florida)
Commerce Block (Converse County, Wyoming)
Commerce Building (Ramsey County, Minnesota)
Commerce Building (Okmulgee County, Oklahoma)
Commerce Building (Creek County, Oklahoma)
Commerce Building/Hancock Building (Ottawa County, Oklahoma)
Commercial and Savings Bank (San Joaquin County, California)
Commercial Bank and Banker's House (Adams County, Mississippi)
Commercial Bank Building (Lac qui Parle County, Minnesota)
Commercial Banking & Trust Co. (Erie County, Ohio)
Commercial Building (Rapides Parish, Louisiana)
Commercial Building (Lorain County, Ohio)
Commercial Building (Creek County, Oklahoma)
Commercial Building (San Juan County, New Mexico)
Commercial Building (Okmulgee County, Oklahoma)
Commercial Building (Okmulgee County, Oklahoma)
Commercial Building (Okmulgee County, Oklahoma)
Commercial Building (Okmulgee County, Oklahoma)
Commercial Building (Okmulgee County, Oklahoma)
Commercial Building (Washington County, Oklahoma)
Commercial Building at 500 North Tryon Street (Mecklenburg County, North Carolina)
Commercial House (Mercer County, Illinois)
Commercial National Bank (Washington, District of Columbia)
Common Burying Ground at Sandy Bank (Middlesex County, Massachusetts)
Compass Inn (Westmoreland County, Pennsylvania)
Conabeer Chrysler Building (Buncombe County, North Carolina)
Concord Building (Multnomah County, Oregon)
Condon National Bank (Montgomery County, Kansas)
Cone and Kimball Building (Tehama County, California)
Congregational Store (Lancaster County, Pennsylvania)
Congress Building (Miami-Dade County, Florida)
Conklin-Montgomery House (Wayne County, Indiana)
Conner's Bookstore (Vanderburgh County, Indiana)
Conover Building (Montgomery County, Ohio)
Consolidated Building (Richland County, South Carolina)
Consolidated Royalty Building (Natrona County, Wyoming)
Continental Bank Building (Salt Lake County, Utah)
Continental Oil Company (Laramie County, Wyoming)
Continental Oil Company Filling Station (Flathead County, Montana)
Conway Building (Cook County, Illinois)
Cook Blacksmith Shop (Dixon County, Nebraska)
Cook Building (Cuyahoga County, Ohio)
Cook Station Bank (Crawford County, Missouri)
Cook Station Mercantile (Crawford County, Missouri)
Mercantile for the village of Cook Station
Cook's Hall (Colfax County, New Mexico)
Cooke City Store (Park County, Montana)
Cool Springs (Mohave County, Arizona)
Coors Building (Colfax County, New Mexico)
Coos Bay National Bank Building (Coos County, Oregon)
Copper Cart (Yavapai County, Arizona)
Copper State Motel (Yavapai County, Arizona)
Corbin Bank Building (Whitley County, Kentucky)
Corbin Building (New York County, New York)
Corby-Forsee Building (Buchanan County, Missouri)
Corlett Building (Cuyahoga County, Ohio)
Corner Lunch (Worcester County, Massachusetts)
Corning Opera House (Adams County, Iowa)
Cornwall Brothers' Store (Jefferson County, New York)