The City of Heidelberg, Germany decided to go all in on embodying its values of sustainability and establishing itself as a city ahead of the curve. The city's new all-Passive House Bahnstadt District meets this challenge with a livable and eco-conscious neighborhood where 6,000 residents live and another 6,000 people work. Join the Passive House Accelerator crew as Robert Persch of the City of Heidelberg guides them through the District. Drone footage by Skylar Swinford.