Which IoT-enabled architectural feature was first implemented in the Edge building in Amsterdam, often cited as the world's smartest building?

The integration of Internet of Things (IoT) technology has revolutionized modern architectural design and building management. Smart buildings now leverage interconnected systems to optimize energy consumption, enhance security, improve occupant comfort, and facilitate predictive maintenance. How well do you know the cutting-edge IoT implementations that are transforming the architectural landscape? Test your knowledge of the latest retail and commercial architectural IoT innovations!

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A smartphone app that tracks employee locations and automatically adjusts lighting and temperature based on occupancy patterns
A drone-based exterior inspection system that autonomously identifies maintenance needs and structural issues
A rainwater harvesting system connected to weather forecasts that optimizes water collection and distribution
A biometric security system that uses facial recognition to customize lobby experiences for regular visitors