Exemplo de aplicação do Instrumento de Estanqueidade: teste de baterias de fogões e bicos queimadores de orifícios calibrados.

What is 23 and who's behind the service?

Just In

Discover the world from a different angle.
Here's a crop of the latest photos from the around the world.

Search photos from users using 23

Help / Discussion

Get help or share your ideas to make 23 better

23 Blog / 23 on Twitter

Messages and observations from Team 23

What can 23 be used for and what isn't allowed

More services from 23

We also help people use photo sharing in their professional lives

Sergio Grinevicius