“Kashmir,” one of Led Zeppelin’s signature songs, was written after LZ’s 1973 tour, about a drive through an area of Morocco. As documented by Wikipedia, Robert Plant told music journalist Cameron Crowe:

The whole inspiration came from the fact that the road went on and on and on. It was a single-track road which neatly cut through the desert. Two miles to the East and West were ridges of sandrock. It basically looked like you were driving down a channel, this dilapidated road, and there was seemingly no end to it.

“Kashmir” is both a fan favorite and a live staple that was played at nearly every concert after its release. It features one of the most memorable LZ riffs.