Isn't there a couple of quite detailed descriptions of heaven in the book of revelation?
Heaven as a (rather nightmarish) choir of kings who eternally sing about the glory of god in the presence of giant creatures made out of eyes:
http://www.biblegateway.com/passage/?search=Revelation%204:1-5:14&version=NIV
The second, as a city made out of gold and precious stones where god lives among his people
http://www.biblegateway.com/passage/?search=Revelation%2021:1-22:15&version=NIV
"The wall was made of jasper, and the city of pure gold, as pure as glass. 19 The foundations of the city walls were decorated with every kind of precious stone. The first foundation was jasper, the second sapphire, the third agate, the fourth emerald, 20 the fifth onyx, the sixth ruby, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth turquoise, the eleventh jacinth, and the twelfth amethyst.[f] 21 The twelve gates were twelve pearls, each gate made of a single pearl. The great street of the city was of gold, as pure as transparent glass."