The guys at UK Feather Flags have put together a blog post that offers cool pics of some of the most awesome flags from throughout history. Check out some of the best pics of flags from the past (plus a few current ones).
Most Serene Republic of Venice (697-1797)
Isle of Man (13th century-)
The Kingdom of Ireland (1542-1800)
State ensign of Siam (1817-1855)
Kingdom of Hungary (1867-1918)
Republic of Formosa or Republic of Taiwan (1895)
See more by clicking the related link below