With no shortage of historical buildings in need of expansion or repurposing, alterations of older architecture via contemporary interventions have flourished in the past four decades – particularly in service of new or growing art museums. These spaces represent the resilience of our historical legacy through contemporary times, demonstrating that the combination even of two vastly different architectural styles can be both beautiful and impressive. Here are ten of the best examples of contemporary interventions on historical buildings in art museums around the world.