Describe the term "adaptive reuse" in architecture.

Adaptive reuse in architecture refers to the practice of repurposing old buildings for new uses while preserving their historic features. This approach allows for the conservation of cultural heritage and the sustainable use of resources, as it often involves modifying existing structures rather than demolishing them. The ability to maintain the historical character of a building while accommodating modern needs is a key aspect of adaptive reuse. This not only respects the architectural significance of the old structure but also contributes to environmental sustainability by reducing waste and the demand for new construction materials. In this way, adaptive reuse serves both functional and aesthetic purposes, breathing new life into spaces that may have otherwise been abandoned or underutilized.