A Very Wealthy City of Asia Minor.  In a valley pron to numerous earthquakes. 
The local water supply was lukewarm due to the proximity of the warm mineral springs at Heirapolis due North and the cool waters from Colossae to the East. An aqueduct brought to water fit for consumption. 

Was famous for the black wool from the local sheep and an eye salve used throughout the Roman Empire.
Tacitus records an earthquake  in the 7th year of Nero AD 61 (Annals 14.27.) Tacitus says that Laodicea was badly destroyed in the quake, but was rebuilt by it’s own citizens refusing assistance from Rome.

“I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.  So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.  Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked:”
Revelation 3:15 -17