Come see the innovative digital twin testbed developed by Texas A&M University, in collaboration with TEEX, and funded through the NIST Public Safety Innovation Accelerator Program 2022. The testbed is modeled after Disaster City®, a renowned 52-acre training facility, to create immersive, photorealistic simulations for first responders and emergency managers. This platform not only enhances training by replicating real-world scenarios, but also serves as an open collaboration space for researchers and entrepreneurs worldwide to develop and evaluate cutting-edge public safety technologies.