homes and residences of colonel muammar gaddafi have been reduced to rubble - and even used as pet markets to sell birds and dogs .
four years after the 2011 revolution that saw colonel gaddafi 's hold on libya crumbled , the once feared bab al-aziziya compound , situated in the capital city of tripoli , resembles a wasteland .
libyans would be nervous just walking anywhere near the fortress-like seat of the gaddafi regime .