I'm amazed at the cleverness of people when they are pushed into a corner. These Underground Cities were built by villagers to hide from armies.

You have to get your imagination hard at work to "see" the city. You can pass by several levels including chimney ventilation, wine presses, cooking places (recognised by the black rock all over - because of the soot from the cooking.). The kitchens are usually in the higher levels, and the toilets are usually far below. (We are only allowed on the first 2-3 levels). We can also see huge stones which were used to prevent invaders from entering the "city". There's also a thought-to-be manger on the ground level.

The inhabitants of the city could live there for weeks or months.

I don't admire their lifestyle. But I do admire their creativity.

One word of caution: The air does get thin at the lower levels. Also, not for the claustrophobic.