Updated: Jun 5, 2019
Rua Augusta's Arch Clock
On Rua Augusta in Lisbon there's an Amazing clock inside an arch. It was build by the company "Boa Reguladora" in 1941 by the watchmaker Manuel Francisco Cousinha, by the time it was wound once a week, but some ears later Francisco Cousinha manage to build a automatic winding up mechanism that worked with mercury. It was nicely recovered in 2007.