by Procne » Fri Aug 26, 2011 2:54 pm
If you are using ender's client then go to options, "Hide" tab.
Make sure that fields near "Trees", "Stones", "Wooden Houses", "Stone Mansions" and "Walls" are checked (names might vary a bit, can't check atm).
Then close options and press ctrl + H.
This will hide objects that you selected previously in options allowing you to see through them. You can also go to extended options (it's where "Build", "Adventure" and "Craft" menus are), and select "highlight hidden" option.