Envision a vibrant portal swirling with luminous energy, surrounded by fragmented scenes from various historical eras—ancient civilizations, futuristic cities, and iconic moments in time. The sky is a tapestry of stars and galaxies, while clock faces and gears float amidst the chaos. Ethereal figures, dressed in attire from different ages, reach out towards the portal, embodying the essence of time travel as they blend together in harmony.