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.
11.09.2025 Switzerland
15.09.2025 Sweden
15.09.2025 Italy
22.09.2025 Netherlands
29.09.2025 Germany
03.10.2025 Netherlands
09.10.2025 Germany
09.10.2025 Switzerland
