This simple and free reference lists the World Heritage Sites (on the UNESCO list) with some details. Does not need a data connection. One of a set of simple references, the paid for RefLibrary app lets you manage this and the other datasets
Apps from the same developer
Easy to use reference that lists the major airports of the world
A listing of Geological time periods which needs no data connection
A listing of entries in the Hackers Dictionary. Needs no external connection
Top 5 Songs
Easy to use reference that lists the top songs of
every year from 1900
Easy to use app that just lists the US Presidents from Washington to Obama.
Related Android Apps
Lexicon English Dictionary. 140,000 entries. 1.4m words.
Find more Android apps and games
Androlicious.com is a website that shows applications and games from Android Market. You can download and install apps and games directly from Android Market using an Android phone or by using WebConnect mobile application.