Tunnelling illustrates the progress of a society and, in particular, the great technical and economic power of certain civilisations. The host country of the WTC, Greece, is a prime example with ancient Greek tunnelling. An innovative development that has continued to permeate the layout of cities in the country until the last major works today.
![WTC 2023: Tunnelling in Greece, a culture of underground activities across history](/media/k2/items/cache/7023db74bcc98ff6947a204db38bf30c_XL.jpg)