This presentation was recorded prior to re:Invent. Home buyers value the ability to experience a home before visiting it. To empower them to do so, Zillow launched its 3D Home tour product nationwide in March 2019. Zillow built a highly performant, scalable, and reliable computer vision and media processing pipeline powered by AWS Step Functions, AWS Lambda, Amazon DynamoDB, Amazon CloudWatch, and Amazon S3. This architecture enabled Zillow to provide an immersive experience that continues to enhance and transform the home buying process. In this talk, Zillow discusses the evaluation process for its chosen technologies, and it provides an in-depth breakdown of the architecture and resulting cost savings.