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Old Arkansas Highway 22 (Logan County, Arkansas)
Old Brick Road (Jackson County, Illinois)
Old Georgetown Road (Charleston County, South Carolina)
Old Military Road (Le Flore County, Oklahoma)
Old Natchez Trace (Unspecified county, Tennessee)
Old Natchez Trace and Choctaw Agency Site (Madison County, Mississippi)
Old Robinson Road (Winston County, Mississippi)
Old Stone Arch, National Road (Clark County, Illinois)
Stone arch bridge over Branch East Mill creek on National Trail/Archer Avenue in Marshall
Old U.S. 62, Busch Segment (Carroll County, Arkansas)
Old US 64 Scotia Segment (Pope County, Arkansas)
Old US 67 Biggers to Datto (Randolph County, Arkansas)
Old US 67 Mandeville (Miller County, Arkansas)
Old US 67, Alicia to Hoxie (Lawrence County, Arkansas)
Old US 71--Little River Approach (Sevier County, Arkansas)
Old US 71--Wilton Segement (Little River County, Arkansas)
Old US 71-Ashdown Segment (Little River County, Arkansas)
Old US 71-Ogden Segment (Little River County, Arkansas)
Old US 79, Kingsland Segment (Cleveland County, Arkansas)
Oregon Trail (Ada County, Idaho)
Oregon Trail Ruts (Platte County, Wyoming)
Oregon Trail, Barlow Road Segment (Clackamas County, Oregon)
Original section - Route 66 (Oklahoma County, Oklahoma)
Orr Roadside Parking Area (St. Louis County, Minnesota)
Otway Covered Bridge (Scioto County, Ohio)
Pagan Creek Dike (Sussex County, Delaware)
Parting of the Ways (Sweetwater County, Wyoming)
Peterson Avenue Hill (Jefferson County, Kentucky)
Pier 57 (New York County, New York)
Pinery Station (Culberson County, Texas)
Pompey's Pillar (Yellowstone County, Montana)
Port Everglades Tollway (Broward County, Florida)
Tollway within a freeway in Fort Lauderdale, Florida
Port Royal Road (Montgomery County, Tennessee)
Pottawatomie Creek Bridge (Miami County, Kansas)
Three span through arch bridge over Pottawatomie Creek on Old KS 7 in Osawatomie
Pusley's Station (Latimer County, Oklahoma)
R. S. Blome Granitoid Pavement in Grand Forks (Grand Forks County, North Dakota)
Red River Trail: Crow Wing Section (Crow Wing County, Minnesota)
Red River Trail: Goose Lake Swamp Section (Pennington County, Minnesota)
Redwood Highway (Del Norte County, California)
Republican River Pegram Truss (Cloud County, Kansas)
Reynoldsburg--Paris Road (Benton County, Tennessee)
Richthofen Place Parkway (Denver County, Colorado)
Ridge Route, Old (Los Angeles County, California)
River Street-Factors Walk (Chatham County, Georgia)
Robidoux Pass (Scotts Bluff County, Nebraska)
Robinson Road (190-191-3M) (Leake County, Mississippi)
Rock Corral on the Barlow Road (Clackamas County, Oregon)
Rocky River Crossing and Road (Van Buren County, Tennessee)
Root River Parkway - Greendale Vicinity (Milwaukee County, Wisconsin)
Rosedale/Rossville Interchange (Baltimore County, Maryland)
Four-level stack interchange in Baltimore, Maryland
Route 1 Extension (Essex County, New Jersey)
Route 66 - Jericho Gap (Donley County, Texas)
Route 66 - Kingman to Topock (Mohave County, Arizona)
Route 66 - Tucumcari to Montoya (Quay County, New Mexico)
Route 66 - Wilmington to Joilet (Will County, Illinois)
Route 66 by Carpenter Park (Sangamon County, Illinois)
Route 66, Cayuga to Chenoa (Livingston County, Illinois)
Route 66, Girard to Nilwood (Macoupin County, Illinois)
Route 66, Litchfield to Mount Olive (Montgomery County, Illinois)
Route 66, TX 207 to I-40 (Carson County, Texas)
Rural Route 66, Brannigan Park (Coconino County, Arizona)
Rural Route 66, Parks (Coconino County, Arizona)
Rural Route 66, Pine Springs (Coconino County, Arizona)
Salt River Road (Boyle County, Kentucky)
Sante Fe Trail Ruts (Ford County, Kansas)
Seedling Mile (Linn County, Iowa)
A section of seedling mile, a demonstration highway built to show motorists the advantages of concrete paving over macadam, gravel or mud.
Selmon Expressway Interchange (Hillsborough County, Florida)
Five-level stack interchange in Tampa, Florida
Serpents Trail (Mesa County, Colorado)
Seventh Street Improvement Arches (Ramsey County, Minnesota)
Snake Alley (Des Moines County, Iowa)
Snogo Snow Plow (Larimer County, Colorado)
Soden's Grove Bridge (Lyon County, Kansas)
Marsh arch bridge over Cottonwood River at Emporia
South Marion Street Parkway (Denver County, Colorado)
South Pass (Fremont County, Wyoming)
Sparkill Creek Drawbridge (Rockland County, New York)
Speer Boulevard (Denver County, Colorado)
Stagecoach Road (Grundy County, Tennessee)
Storm King Highway (Orange County, New York)
Substation 219 (New York County, New York)
Susquehannah Turnpike (Greene County, New York)
Sylvan Road Bridge (Cook County, Illinois)
Tacoma Narrows Bridge Ruins (Pierce County, Washington)
Tank Farm Loop Route 66 Roadbed (Creek County, Oklahoma)
Thirty-Fifth Parallel Route (Apache County, Arizona)
Torrey Pines Park Road (San Diego County, California)
Trail Ridge Road (Unspecified county, Colorado)
Traveler's Rest (Missoula County, Montana)
University Boulevard (Denver County, Colorado)
Urban Route 66, Williams (Coconino County, Arizona)
US 70, Union Valley Segment (Lonoke County, Arkansas)
Valdez Trail--Copper Bluff Segment (Valdez-Cordova Census Area, Alaska)
Venetian Causeway (Miami-Dade County, Florida)
Veterans Bridge Interchange (Allegheny County, Pennsylvania)
Three-level stack interchange in Pittsburgh, Pennsylvania
W Road (Hamilton County, Tennessee)
Waddell's Station Site (Atoka County, Oklahoma)
Wagon Mound (Mora County, New Mexico)
Walden Street Cattle Pass (Middlesex County, Massachusetts)
Walnut Ridge Army Airfield Access Road (Lawrence County, Arkansas)
Warren Brick Streets (Bradley County, Arkansas)
Washington County Kingpost (Washington County, Kansas)
Washington Road Elm Allee (Mercer County, New Jersey)
Water Holes Ranch (Cheyenne County, Nebraska)
Watkins Glen Grand Prix Course, 1948-1952 (Schuyler County, New York)
Wescott Road (Charleston County, South Carolina)
West 4th Street Subway Station (IND) (New York County, New York)
West Forty-sixth Avenue Parkway (Denver County, Colorado)
West Sappa Creek Lattice (Norton County, Kansas)
Western Terminus - US Route 66 (Los Angeles County, California)
Western Terminus - US Route 66 (modern) (Los Angeles County, California)
Weston and Gauley Bridge Turnpike (Braxton County, West Virginia)
White Bird Grade (Idaho County, Idaho)
Williams Street Parkway (Denver County, Colorado)
Woodchopper Roadhouse (Yukon-Koyukuk Census Area, Alaska)
Wooden Alley (Cook County, Illinois)
Alley with a wooden block surface.
Yatesville Covered Bridge (Lawrence County, Kentucky)
Lost Howe truss covered bridge.
Yellowstone Crossing, Bozeman Trail (Sweet Grass County, Montana)
Yellowstone Road, The (King County, Washington)
York Subway (York County, Nebraska)
Zion-Mount Carmel Highway (Washington County, Utah)