The theme of WTC 2023 “EXPANDING UNDERGROUND”, will focus on the Knowledge and Passion that our industry offers to Make a Positive Impact on the World. WTC 2023 in Athens, that will be carried out in hybrid mode, will highlight on the multiple advantages and solutions that underground space can provide, at the prospect of a whole new era of smart technology, where sophisticated “digital tools” change investigation, design, construction and operation methods and strategies rapidly.