The home's low-maintenance Cor-Ten steel exterior can be easily washed down when needed.  Photo 3 of 14 in A Tiny Guesthouse Hides in a Lush Australian Rainforest

A Tiny Guesthouse Hides in a Lush Australian Rainforest

3 of 14

The home's low-maintenance Cor-Ten steel exterior can be easily washed down when needed.