Within the family of carbon phanes,one that has caught my attention is cycloparaphenylene. Considering that in practice it is just a segmented piece of a carbon nanotube, is must be aromatic in nature.
Yet it is distinct from carbon nanotubes, how does its aromatic nature differ from carbon nanotubes?
In a related topic: How would an increase in the diameter of a carbon nanohoop affects its aromaticity?
Note: Here is a cross-section of a carbon nanotube, which is in the shape of cycloparaphenylene.