# Menger-Schwamm

- By: Niabot
- Date: 2009-09-10
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Menger-Schwamm.png)
- Rights: [CC BY 3.0](https://creativecommons.org/licenses/by/3.0)
- Picture: https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Menger-Schwamm.png/1920px-Menger-Schwamm.png
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Menger Sponge after four iterations.