Comedian Mark Steel gets to grips with the bird observatory, stone quarries and customs of the Isle of Portland in order to find out what makes it so distinctive.

Find out why the locals are obsessed with obelisks and why you must never say the 'r' word.

Series in which the comedian visits towns across the UK and creates a stand-up show for the locals.

Producer: Julia McKenzie

First broadcast on BBC Radio 4 in April 2009.