As they stroll along the Cap, many pedestrians aren't even aware that they're crossing an eight-lane interstate highway.
This aerial view shows the basic design: Three parallel bridges across the freeway.
The center bridge carries High Street. Shops and restaurants are located on top of additional bridges which extend
out along either side of the original freeway overpass.
The freeway isn't really visible to pedestrians as they walk south on High Street toward downtown Columbus.
The I-670 Cap under construction in 2003.
Before the Cap: The High Street overpass in 2002.