To build a virtual travel experience through Facebook, we would need to create a platform that allows users to explore different parts of the world virtually. This platform could be integrated with Facebook's existing social media features, such as photos and videos, to provide a more immersive experience. To begin, we would need to identify the key features that users would want in a virtual travel experience. These might include 360-degree video tours, interactive maps, and curated content from locals and travel experts. We could also incorporate social features, such as the ability to connect with other travelers and share experiences. Once we have identified the key features, we would need to design and build the platform. This would involve working with a team of developers and designers to create a user-friendly interface that is accessible to a wide range of users. We would also need to consider how to monetize the platform. We could potentially offer sponsored content from travel brands or charge a subscription fee for access to premium features. Finally, we would need to launch and promote the platform to attract users. This could involve working with influencers and travel bloggers to generate buzz and leveraging Facebook's existing user base to drive traffic to the platform. Overall, building a virtual travel experience through Facebook would require a strong understanding of product management principles and a deep understanding of the travel industry and user needs.