We demonstrate the online deployment of Geollery, a mixed reality social media platform. We introduce an interactive pipeline to reconstruct a mirrored world at two levels of detail: the street level and the bird's-eye view. Instead of using offline 3D reconstruction approaches, our system streams and renders a mirrored world in real time, while depicting geotagged social media as billboards, balloons, framed photos, and virtual gifts. Geollery allows multiple users to see, chat, and collaboratively sketch with the spatial context in this mirrored world. We demonstrate a wide range of use cases including crowdsourced tourism, interactive audio guides with immersive spatial context, and meeting remote friends in mixed reality. We envision Geollery will be inspiring and useful as a standalone social media platform for those looking to explore new areas or looking to share their experiences. Please refer to https://geollery.com for the paper and live demos.