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.
29.01.2026 Bosnia and Herzegovina
03.02.2026 Finland
04.02.2026 Germany
06.02.2026 Spain
09.02.2026 Norway
17.02.2026 France
19.02.2026 Sweden
23.02.2026 Switzerland
19.03.2026 Bulgaria
