Commercial building

The Elverson Building (Philadelphia County, Pennsylvania)
The Hat Pastrami (Los Angeles County, California)
The Little Chef Restaurant (Roanoke, Virginia)
The Natatorium (Potter County, Texas)
The Plainsman (Navajo County, Arizona)
The Star (Ketchikan Gateway Borough, Alaska)
Theo Berryhill / Stonewall Building (Creek County, Oklahoma)
Theresa Building (Franklin County, Ohio)
Thibodeau Electric Shop (Flathead County, Montana)
Thiesen Building (Escambia County, Florida)
Third National Bank (Onondaga County, New York)
Third National Bank (Erie County, Ohio)
Third National Bank (Barren County, Kentucky)
Third National Bank Building (Gaston County, North Carolina)
Thom Block (Worcester County, Massachusetts)
Thomas B. Finley Law Office (Wilkes County, North Carolina)
Thomas Drugs (Robertson County, Tennessee)
Thomas James Store, Old (Mathews County, Virginia)
Thompson Block (Cumberland County, Maine)
Thompson Station Bank (Williamson County, Tennessee)
Thompson Store (Williamson County, Tennessee)
Thompson's Block (Dane County, Wisconsin)
Thompson--Roach Building (Lane County, Oregon)
Thorton Building (Fulton County, Georgia)
Thos. Corrigan Building (Jackson County, Missouri)
Threatt Filling Station (Oklahoma County, Oklahoma)
Three Valleys State Bank (Gallatin County, Montana)
Thurston Building (Wood County, Ohio)
Ticonderoga National Bank (Essex County, New York)
Tidball Store (Monterey County, California)
Tiffany and Company Building (New York County, New York)
Tiger Building (Okmulgee County, Oklahoma)
Tightwad Bank (Henry County, Missouri)
An regular bank with an unusual name
Tillman County Bank of Grandfield (Tillman County, Oklahoma)
Times and Olympia Buildings (Bristol County, Massachusetts)
Times Building (Madison County, Alabama)
One of the oldest and tallest buildings in Huntsville
Times-Star Building (Hamilton County, Ohio)
Timmerman--Burd Building (Henry County, Iowa)
Tina's Diner (Hartford County, Connecticut)
Large, space-age style diner, heavily remodeled.
Tinker Building (Orange County, Florida)
Tinkham Veale Building (Shawnee County, Kansas)
Tioga Centre General Store (Tioga County, New York)
Tioga Inn (Neosho County, Kansas)
Tip-Top House (Coos County, New Hampshire)
Tipton State Bank (Cedar County, Iowa)
Title and Trust Building (Maricopa County, Arizona)
Title Guarantee and Trust Company Building (Los Angeles County, California)
Tomahawk Bar (McKinley County, New Mexico)
Tomkins-Swartz Mill (Floyd County, Indiana)
One of a few commercial buildings left in Galena, Indiana
Tonapah Liquor Company Building (Nye County, Nevada)
Tonieville Store (Larue County, Kentucky)
Toole Building (Sabine County, Texas)
Torrey Pines Lodge (San Diego County, California)
Torrey--Larrabee Store (Ocean County, New Jersey)
Totem Pole Trading Post (Phelps County, Missouri)
Tower Building (St. Joseph County, Indiana)
Tower Building (Washington, District of Columbia)
Tower Station (Wheeler County, Texas)
Town Clock Building (Dubuque County, Iowa)
Town Diner (Middlesex County, Massachusetts)
Townsend Building (Union County, Florida)
Tracy Loan and Trust Company Building (Salt Lake County, Utah)
Tracy--Causer Block (Cumberland County, Maine)
Tradesman's National Bank Building (Oklahoma County, Oklahoma)
Tramway Building (Denver County, Colorado)
Travelers Home (Yamhill County, Oregon)
Treat Commercial Building (Searcy County, Arkansas)
Trees City Office and Bank Building (Caddo Parish, Louisiana)
Trew General Merchandise Store (McMinn County, Tennessee)
Tri State Bakery (Butte County, South Dakota)
Tri-County Truck Stop (Franklin County, Missouri)
Tri-State Bank (Shelby County, Tennessee)
Tri-State Land Company Headquarters Building (Scotts Bluff County, Nebraska)
Triangle Building (Muscogee County, Georgia)
Triangle Diner (Winchester, Virginia)
Triangle Inn (Sarasota County, Florida)
Tribune Building (Tulsa County, Oklahoma)
Tribune Building (Natrona County, Wyoming)
Trigg--Smartt Building (Hamilton County, Tennessee)
Trinity Block (Hampden County, Massachusetts)
Triplett Company Building (Lafayette County, Arkansas)
Tripp House and Store Complex (Greene County, New York)
Trolley Pub On Main (Windham County, Connecticut)
Trotter's Warehouse (Fayette County, Kentucky)
Troy Laundry (Santa Clara County, California)
Troy Laundry Building (Multnomah County, Oregon)
Trueheart-Adriance Building (Galveston County, Texas)
Trustees System Service Building (Cook County, Illinois)
Tuba Trading Post (Coconino County, Arizona)
Tubbs Cordage Company Office Building (San Francisco County, California)
Tucker Carriage House (Wake County, North Carolina)
Tugboat Annie's (Los Angeles County, California)
Tulane Building (Montgomery County, Alabama)
Tulsa Club Building (Tulsa County, Oklahoma)
Tulsa Monument Company (Tulsa County, Oklahoma)
Tupper and Reed Building (Alameda County, California)
Turn Store and the Tinsmith's Shop (Pike County, Pennsylvania)
Turner Building (Creek County, Oklahoma)
Turner--Todd Motor Company (Mobile County, Alabama)
Turpin Grain Elevator (Beaver County, Oklahoma)
Tuton's Drugstore (Oklahoma County, Oklahoma)
Tutt Building (Pueblo County, Colorado)
TWA Administrative Offices Building (Platte County, Missouri)
A four-story building, executed in the Modern Movement Miesian style
TWA Corporate Headquarters' Building (Jackson County, Missouri)
Twelve Mile House (Hamilton County, Ohio)
Twin Arrows (Coconino County, Arizona)
Twin Falls Canal Company Building (Twin Falls County, Idaho)
Twin Peaks Sports (Custer County, Idaho)
Twining Laboratories (Fresno County, California)
Two Medicine General Store (Flathead County, Montana)
Twohy Building (Santa Clara County, California)
Tyree Stone Tavern (Fayette County, West Virginia)
U. L. Hickmon Hardware Store (White County, Arkansas)
U.S. Animal Quarantine Station (Passaic County, New Jersey)
U.S. Coal and Coke Company (McDowell County, West Virginia)
U.S. Custom House (Baltimore, Maryland)
U.S. Customhouse (York County, Maine)
U.S. Customhouse (Norfolk, Virginia)
U.S. Customhouse (Niagara County, New York)
U.S. Customhouse (Chatham County, Georgia)
U.S. Customhouse (Orleans Parish, Louisiana)
U.S. Customhouse (Multnomah County, Oregon)
U.S. Customhouse (Charleston County, South Carolina)
U.S. Customhouse (Oswego County, New York)
U.S. Customshouse (St. Lawrence County, New York)
U.S. Mint (Carson City, Nevada)
U.S. Mint, New Orleans Branch (Orleans Parish, Louisiana)
U.S. National Bank (Galveston County, Texas)
U.S. National Bank Building (Clark County, Washington)
Uncle John's Pancake House (Bernalillo County, New Mexico)
Union Auto Company (Eau Claire County, Wisconsin)
Union Bank (Leon County, Florida)
Union Banking Company Building (Coffee County, Georgia)
Union Block (Yamhill County, Oregon)
Union Block (Jefferson County, Kansas)
Union Block (Livingston County, New York)
Union Block (Bourbon County, Kansas)
Union Block (Washtenaw County, Michigan)
Union Block (Traill County, North Dakota)
Union Brewery (Johnson County, Iowa)
Union Bus Station (Seminole County, Oklahoma)
Union Co-operative Store Bakery (Washington County, Vermont)
Union Depot Railroad Co. Building (St. Louis, Missouri)
Union Market (St. Louis, Missouri)
Union Meat Market (Berrien County, Michigan)
Union National Bank (Eau Claire County, Wisconsin)
Union National Bank (Washington County, Oklahoma)
Union National Bank and Annex (Ward County, North Dakota)
Union Pacific Freight Building (Yakima County, Washington)
Union Savings Bank and Trust (Scott County, Iowa)
Union Storage and Warehouse Company Building (Mecklenburg County, North Carolina)
Union Street Railway Carbarn, Repair Shop (Bristol County, Massachusetts)
Union Tavern (Caswell County, North Carolina)
Union Trust Building (Washington, District of Columbia)
Union Trust Building (Hamilton County, Ohio)
Union Trust Building (Allegheny County, Pennsylvania)
Union Trust Company Building (Providence County, Rhode Island)
Union Trust Company Building (Hampden County, Massachusetts)
Union Trust Company Building (St. Louis, Missouri)
Union Warehouse (Denver County, Colorado)
Union Wharf (Suffolk County, Massachusetts)
United Bank Building (Litchfield County, Connecticut)
United Building (Dickinson County, Kansas)
United Carbon Building (Kanawha County, West Virginia)
United Electric Co. Building (Hampden County, Massachusetts)
United Founders Life Tower (Oklahoma County, Oklahoma)
United Illuminating Company Building (Fairfield County, Connecticut)
United Motor Service Building (Cuyahoga County, Ohio)
United Office Building (Niagara County, New York)
United Shoe Machinery Building (St. Louis, Missouri)
United Shopping Tower (King County, Washington)
United Traction Company Building (Albany County, New York)
Universal Car Company (Jefferson County, Kentucky)
Universal Life Insurance Company (Shelby County, Tennessee)
Upham's Corner Market (Suffolk County, Massachusetts)
Upson-Walton Company Building (Cuyahoga County, Ohio)
Uptown Broadway Building (Cook County, Illinois)
US Chamber of Commerce Building (Washington, District of Columbia)
US Custom House (Santa Cruz County, Arizona)
US Customhouse (Essex County, Massachusetts)
US Customs Building (Toole County, Montana)
US National Bank (Denver County, Colorado)