SITE has opened registration for SITE NITE Europe 2026 in Frankfurt, with registration for the SITE Young Leaders’ Conference opening at the same time, creating a day of education, networking and community-building ahead of IMEX Frankfurt.   SITE NITE Europe 2026 will take place at Depot 1899, a beautifully reimagined 100-year-old tram depot in Frankfurt, on Monday 18 May 2026, as the global incentive travel community prepares to gather for IMEX.   The SITE Young Leaders’ Con