The winner to host the WTC2023 is Greece! The final voting result: Greece 33 vs Turkey 14. The theme will be EXPANDING UNDERGROUND - Knowledge & Passion to Make a Positive Impact on the World. To learn more about the host city Athens and the Greek Tunnelling Society please visit https://athenswtc2023.gr/ . 06/21.
17.11.2025 Romania
18.11.2025 Germany
20.11.2025 Romania
21.11.2025 Switzerland
21.11.2025 Austria
27.11.2025 Switzerland
27.11.2025 Spain
09.12.2025 Switzerland
09.12.2025 Belgium
09.12.2025 Italy
16.12.2025 Iceland
