Its double-tiered library, marble-paved roads, theatre, baths and even public latrine offer the most-preserved look at ancient city life in Turkey.

BBC: An epic ancient ruins road trip

The idea is to build a mobile tool to collect data through toilet ID mechanism to identify, track, and resolve problems around latrine maintenance in schools (or other public latrines).

FORBES: Why Toilets, Not Cell Phones, Are Key To Education Around The World

This is not only a costly situation but especially harmful to women, children, the elderly and disabled, who risk their safety visiting public facilities at night. 4.8 million Ghanaians (approximately 1 in 5) have no latrine at all and defecate in the open, and that the poorest quintile is 22 times more likely to practice open defection than the richest.

FORBES: Building a Scalable Business in Ghana: Because Every Family Deserves a Toilet