The Convento de Cristo in Tomar, Portugal, is a remarkable architectural complex that reflects the historical and cultural significance of the Templar Knights. Founded in the 12th century, this UNESCO World Heritage Site combines various architectural styles, including Romanesque, Gothic, Manueline, and Renaissance, showcasing the evolution of Portuguese architecture. The convent's famous round church, inspired by the Church of the Holy Sepulchre in Jerusalem, and the ornate Manueline window are just two examples of its unique features that attract visitors from around the world.