Next Block Expo 2026 (NBX) - The Blockchain Festival of Europe - is one of the largest Web3 and blockchain conferences in Europe, which will be held March 24-25, 2026 at the EXPO XXI in Warsaw..  Over 5000 participants, 200+ speakers i 80+ exhibitors will talk about DeFi, RWA, gaming, NFT, infrastructure, AI, investing and regulation, and startups will present, among others. Pitch Arena i zone Web3 Gaming Zone.  NBX is also intensive networking supported by a mobile app and Polish Blockchain Week flagship event.