The New Zealand Rock Wren, In Its Natural Habitat

This bird rocks.

Eucalyptus Deglupta

Eurasian Blue Tit

View Of Naarden - Jacob Van Ruisdael

Bay Wren

Racket-Tailed Treepie
(yet another weekly links delay. enjoy a bunch of birds)

Aristotle - Categories
Aristotle and the Personification of Dialectic, Andrea di Bonaiuto (1365)

What is there to say about this one? It probably seemed like an extremely good idea at the time, and it inspired people for the better for over a thousand years. But, in the modern world, it seems like more of a historical curiosity than something that's interesting in itself.

Head Of The Serpent Column

Originally offered in Delphi to celebrate the Greek victory against the Persians, and moved to Constantinople by Constantine.