A homeless man descends into the inhabited network of heating tunnels underneath the streets in Bucharest, Romania.
A member of the underground community demolishes a wall with a sledgehammer.
Religious paintings hang on walls inside the tunnels.
Community members discuss construction plans for a makeshift house.
A member of the community sleeps on one of the heating tubes inside the tunnel system.
A member of the community stands near the Gara de Nord train station, asking drivers for money.
A man, left, injects "Pure by Magic," a synthetic stimulant drug.
An empty street at night in Bucharest.