I-77 in Charlotte, North Carolina is also known as the "Bill Lee Freeway". A small portion south of the city is called the "General Younts Expressway".
The junction between I-77 and I-85 in Charlotte is a rather odd configuration. When I-77 crosses over I-85, the northbound lanes are to the west of the southbound lanes. The lanes return to their proper positions north and south of this interchange.
When I-77 and I-81 merge in Virginia, you are going both north and south on a wrong-way multiplex.
I-77 passes through the "Virginia High-Tech Corrdior", which could strike some as ironic, since I-77 passes through one of the most rural sections of Virginia.
There were originally plans to extend I-77 as far north as Detroit (and possibly into Canada!), along the Ohio Turnpike, I-75 and I-94. Had this extension taken place, the spur into Cleveland would have been renamed I-177.
I-77 is also the "Vietnam Veterans Memorial Highway", although it is never referred to as this and signage is sparse (possibly only in Ohio does the freeway carry this designation).