Yellow brick road
The actual road is believed to be one in Peekskill, New York, where L. Frank Baum attended Peekskill Military Academy. According to a local legend, the Yellow Brick Road was derived from a road paved with yellow bricks near Holland, Michigan, where Baum spent summers. Ithaca, New York, also makes a claim for being Frank Baum's inspiration. He opened a road tour of his musical, The Maid of Arran, in Ithaca, and he met his future wife Maud Gage Baum while she was attending Cornell University. At the time, yellow bricks paved local roads. Yellow brick roads can also be found in Aberdeen, South Dakota; Albany, New York; Rossville (Baltimore County), Maryland; Montclair, New Jersey (Parkhurst Place and Afterglow Way); Bronxville, New York (on Prescott and Valley roads); Chicago, Illinois; Liberal, Kansas; Sedan, Kansas and Chittenango, New York, as well as a school in Abington, Pennsylvania, and abroad in Sofia, Bulgaria.
Interstate 670 (Kansas–Missouri)
Interstate 670 (I-670) is a 2.81 mile (4.52 km) connector highway between I-70 in Kansas City, Kansas and I-70 in Kansas City, Missouri. The highway provides a more direct route through downtown Kansas City than the older mainline I-70, and avoids the sharp turn (and reduced speed limit) of the latter at the west end of the Intercity Viaduct. I-670 is also designated "Alternate Interstate 70", one of the few interstates to be designated as an alternate.
Interstate 670 also makes up the south side of Kansas City's downtown freeway loop, where it passes under the southern half of Bartle Hall Convention Center.