Top 10 Cities With The Most Polluted Air

Do you live in a polluted city? It’s a complaint often heard by the residents of “super-cities” like New York and London that their air isn’t clean, but it might surprise you to know that both those cities have relatively healthy air, according to the WHO. On their air pollution database, they use a measure […]

Top 10 Walled Cities

There was a time when city walls were really useful – they stopped barbarians getting in, they stopped citizens getting out and they provided a handy spot from which to tip boiling oil on the heads of anyone trying to breach them. But times have changed and we live in a more sophisticated age – […]