Aurora, CO, United States

The mass shooting in 2012 that left 12 dead and 70 injured remains a haunting specter for Aurora. While gun sales spiked after the tragedy, the city has struggled with a heavy bureaucratic burden, including a legal battle over the reopening of the theater where the attack occurred. Nearby residents report persistent headaches from dealing with the aftermath, including a memorial installation that some victims' families boycotted. Overall, Aurora is a city that demands resilience - it may not be the best fit for the faint of heart.