After months and months of intense and rigorous research I have made a discovery. It is damn near impossible to get a key into a keyhole when sloshed into oblivion. It took a lot of work, but it is ...

Hidden on the peaceful Aventine Hill in Rome lies one of the city’s most curious and popular attractions: a simple keyhole. But what lies beyond this ordinary keyhole is what makes it so extraordinary ...

This 3 volt Lithium cell operated LED flasher can be used as a keyhole finder in darkness or to find your door keys. A small lithium button cell can power the circuit more than 6 months continuously ...

Discover Rome’s hidden Aventine Keyhole (Buco della Serratura), where a tiny green door perfectly frames St. Peter’s Basilica ...