Plains Indians lived in teepees made of buffalo hides and held up by wooden poles.  These teepees were warm in the winter and cool in the summer.

The door to the teepee was a round opening which faced east toward the rising sun.  In the middle of the teepee, a small fire was built for cooking and warmth.  Plains Indians usually slept on buffalo robes on the teepee's floor.
 
The Plains Indians thought their teepees were very important so they often painted them.  These paintings were often religiously symbolic.
 
Women in these tribes were responsible for putting up and taking down the teepees.  The Indians transported their teepees from place to place using horses.  These tribes were called nomads.
 
Some tribes did not move from place to place, so these Indians lived in earth or grass lodges.  These lodges were dome-shaped and covered with earth.