Just how far can human courage go? Brave human birds have appeared, darting through a massive structure at a dizzying height.

This is the Roquefavour Aqueduct in southern France.

Three men wearing wingsuits, specialized flight suits modeled after flying squirrels, pass side by side through the massive arches.

Their flight, cutting right through the architecture, draws gasps of admiration.

Built in the 19th century to solve Marseille's water shortage, this aqueduct is a massive stone structure standing about 83 meters tall.

It is a representative historical heritage showcasing the civil engineering technology and architectural beauty of that era.

The athletes participating in this flight are veteran flight experts who have won multiple times at world-class freefly competitions.

Flying through a structure with a history well over 100 years, they fully displayed the flying skills they have honed over time, creating a spectacular view where the past and present blend together.

(Photo: Instagram @soulflyers, @fredfugen, @vincent.cotte)