This document summarizes an Erasmus+ project called "Discover and share your identity mark" between a school in the Basque Country and one in Greece over two years. It involves students and teachers from both schools participating in cultural exchanges and joint activities to learn about each other's cultural heritage through areas like art, music, history, and sport. Key events include teacher training exchanges, student visits between the schools, and online collaboration using eTwinning. The goal is for students to gain awareness of their own and each other's cultural heritage through international cooperation.