Sash windows
![Sash windows](https://history.ey.gov.tw/wp-content/uploads/2023/03/n003-1.jpg)
Description
Most of the double-hung sash windows that line the corridors of the Executive Yuan have retained their original wooden frame. Sash chains on both sides of the windows run over a pulley to a counterweight that keeps the top and bottom windows in place and prevents them from sliding down the tracks. This clever design shows the ingenuity of the builders.