Emerald City
Emerald city started out as a small salt mine operation. Over years it grew at a steady pace, slowly expanding. Then one day, a miner pulled a large Emerald, which caused other mine owners to set up shop nearby, and loads of civilians moved in over the course of a year. Some more emeralds were recovered but within five years, no more were being pulled. Businesses went under, people moved out, and trash piled up. The city is now a large slum and mining town, filled full of trash, all due to unfulfilled dreams.