Thank you for explaining this. I kept looking for an explanation of what it means to be a "high street" – After not finding said explanation, I assumed it had t

Thank you for explaining this. I kept looking for an explanation of what it means to be a "high street" – After not finding said explanation, I assumed it had to do with elevation, and whether this person was exploring elevation "peaks" in London. So it seems to be sort of like what are typically called "Main St" in American towns.