Many people celebrate this weekend the Orthodox Easter, a holiday with long lasting traditions, and specific customs.
For Orthodox Christians, an old, old tradition is the dying of eggs to symbolize and attest to the resurrection of Jesus Christ. The eggs, which are a symbol of the stone tomb where Jesus’ body was laid, are traditional symbols now for greeting on Easter.

Red Easter egg – Wikipeda
As for the red color, this has been the color of life and victory since the dawn of mankind. Early Christians stained eggs red to remember the blood Christ shed for them. In Greek Orthodox religion, there is no definitive one reason for this staining of the eggs, but the most prevalent story links to Mary Magdalene, who was first at the empty tomb of Jesus. According to the story, Mary ventured to inform the Roman emperor of Jesus’ resurrection, only to be met with disbelief. The Emperor told Mary he would believe her story if the eggs in a basket next to him turned red at that very moment. To his great surprise, the eggs instantly turned blood red.

The Garden Tomb in Jerusalem – Considered the burial chamber of Jesus – Wikipedia
Happy Easter everyone, from Argophilia Travel News.