Six hundred cliff dwellings are now part of the Mesa Verde National Park.

VOA: special.2009.03.04

Six hundred are cliff dwellings.

VOA: special.2011.03.30

There are more than 1.5 million of these self-propelled rolling dwellings in the United States.

VOA: standard.2010.03.01

Visions of soaring high-rises crumbling may grip the imagination but Surahman says it is the smaller one and two storey dwellings that are most vulnerable in places like Indonesia.

VOA: standard.2009.09.07