- ... that the Chickasaw Turnpike (pictured) is the only two-lane turnpike in Oklahoma?
- ... that Wisconsin Highway 131 crosses nine bridges in 7.3 miles (11.7 km) between the communities of Rockton and Ontario?
- ... that only 2 miles (3 km) of New York State Route 279's 9-mile (14 km) alignment is maintained by the state of New York?
- ...that Interstate 80 in Nevada crosses the Forty Mile Desert, the most dangerous part of the California Trail?
- ... that plans were shelved for the Southside Connector over concerns that it would pollute aquifers that were later found to be polluted inadvertently by the military?