For something road-related:
Go here, and click "Interstates". Find all the extra corridors. (ME 6? Really?)
Part of I-22 is missing though...
Ohio:
- US 33 freeway NW of Columbus
- OH 11
- OH 2 freeway sections
Dotted/dashed lines exist on the map for the following freeway or expressways:
- US 22 at Steubenville
- US 23 N of Columbus
- A single dot for US 24 southwest of Toledo
- US 30
- US 33 between Columbus and I-77. One of the dots is Athens, not sure where the other is
- US 35
- US 52 southeast of Portsmouth
Michigan (mostly solid lines, unlike Ohio):
- US 10 between Clare and Bay City
- US 23 between Toledo and Flint
- US 31 between South Bend and Benton Harbor, and north of Muskegon
- US 127 between Jackson and Lansing, and between what looks like Mt Pleasant and I-75 south of Grayling
- US 131 north of Kalamazoo
- M-14 east of Ann Arbor
- M-59 freeway section east of Pontiac
Kentucky (also mostly solid lines):
- Cumberland Pkwy
- US 23/KY 80 between I-64 and I-75 in the southeast of the state (this one seems so random to me).
- WKY Pkwy between I-69 and I-65
- Bluegrass Pkwy
- Mountain Pkwy
- Audubon Pkwy
Indiana doesn't seem to have that much outside of interstates besides the US 20/31 loop at South Bend.
