THE MOLE PEOPLE

# Life on the street is tough, but what options does a homeless person have when the busy, unforgiving city is becoming too much for them to handle? Why, they just go underground! Underground: Where no cops or street-punks will hassle you. Just mole rats and the lava people...
# Beneath the casinos and the flashing neon lights of the Las Vegas strip lies a labyrinth of tunnels that were initially built to protect the city from flash floods. But now they've become a place where the homeless live sheltered from the weather, rent free.
# There are over 200 miles of tunnels under the city and any trip down into them reveals a vast network of homeless shelters. We aren't talking cardboard boxes here, either: They have some pretty sophisticated homes.

# New York City also has abandoned tunnel systems that the homeless have found shelter in. The AmTrak Freedom Tunnel was built in the 1930s but, as it served no real purpose, it was quickly abandoned. For over 30 years, it acted as a shelter for huge tribes (that's what you call groups of hobos, right? Or is it a gaggle?) of homeless people. But it wasn't just sleeping in the dirt: They formed complex societies complete with mayors and elaborate social structures. They were so resourceful that many of them even siphoned water and electricity from the city and built ad-hoc underground, multi-story homes out of whatever was available.