Reflecting pool

Still water as a mirror. The engineering is all in what you do about wind, debris and the twenty minutes after somebody walks through it.

Kestrel House · Lisbon, Portugal · 2024

A 240 m² sheet of water 40 mm deep, level to ±2 mm across the whole court, holding the sky.

City of Ravenshill · Chicago, United States · 2019

A 1974 civic basin brought back from a 14 m³-a-day leak to a sealed 140 m³ pool with a third of the original running cost.