Craft an engaging social media image showcasing a realistic character—a Middle-Eastern man—dressed in traditional attire, standing in front of an iconic cultural landmark (like the Taj Mahal) against a solid pastel-colored background. The character should have a welcoming smile, holding a travel guide. Place the text "Discover Cultural Treasures" at the center bottom of the image in an elegant serif font, sized at approximately 38pt, using a metallic gold color to convey a sense of richness and heritage. The solid background will keep the focus on the character and the cultural theme of the image.