New York City

"A concentration camp is a facility where large groups of people, often political opponents, minorities, or "enemy citizens," are imprisoned or confined without trial, usually for security, exploitation (forced labor), or punishment, as famously used by Nazi Germany, the Soviet Union (Gulags), and other regimes, sometimes evolving into extermination camps . Key features include forced confinement, detention without legal process, often harsh conditions, and targeting specific ethnic, political, or religious groups."

...Lockup. Processing facilities. Yeah. Cool.