Information on the Greek mythology of Centaurus can be found on several online platforms, such as Wikipedia, for example. Additionally, there are several books existing, dealing with this particular topic. Local libraries or book stores typically are a good place to consult in this regard.
Since centaurs only exist in mythology you won't find them at an animal shelter anywhere.
Poseidon is a figure from Greek mythology, so you can learn more about him by reading ancient Greek texts like the Iliad and the Odyssey. You can also find information about Poseidon in books about Greek mythology, or by exploring websites dedicated to Greek gods and goddesses.
In the present, you can find books or films based upon Greek Mythology.
Medusa is a character of Greek mythology. Her story, as well as many other stories of Greek mythology can be found in various books and websites. A few books that contain information on Medusa include 'Perseus: The Hunt for Medusa', 'Medusa,' and 'Sweet Venom.'
Use Google.com and search through images, type in the search box "Greek mythology tattoos"
I have no clue what Greek mythology is exactly but i know it is a cool topic to learn about. you should go to Britannica encyclopedia to find out.
http://www.windows.ucar.edu/tour/link=/mythology/greek_family_tree.html
not that hard if you find it interesting
You will find the WikiAnswers category 'Myths and Folklore' at the link below. Another place for mythology questions would be Ancient Religions, since Greek and Roman "mythology" was actually part of the religious beliefs of ancient Greeks and Romans. You can find Greek Mythology at 'History Politics and Society/Ancient History/Greek Mythology'.
I can find no references to either the flower, the mineral or the surveying tool in mythology.
Orion.
you can probably just Google Image 'greek mythology jason'.