In the 19th century, the towers were a popular way of lighting the streets. Later, they were replaced by lamps, but Austin still has them!
Wikipedia http://en.wikipedia.org/wiki/Moonlight_tower#Moonlight_towers_in_Austin.2C_Texas
Address 403 W 9th St, Austin 78701, United States
Coordinates 30°16'18.75" N -97°44'43.02" E