Beware of SPOILERS, for those who have not seen this phenomenal show, or read the manga by the same name, I suggest you go and find Fullmetal Alchemist Brotherhood on Youtube or wherever you can watch it and do just that. A discussion like this cannot accurately convey just how good it is, nor am I going to try. If anything, I'm just going to link my favorite songs and non-spoilery scenes and allow the rest of you to chat about it. Feel free to post your favorite scenes or let us know if you've never heard of it before!
Synopsis:

Opening 1: Again // Favorite Stanza:
To chase my wishes I’ll carry on living
And I will always remember the depths of the darkness
I’ll face my demons and I’ll no longer run away
There isn’t a place to go
I’ll lose this feeling of being so helpless
‘Cause my whole life is ahead of me
I’ll quash the numbness
'Cause pain’s better than the emptiness
Opening 2: Hologram // Favorite Stanza:
I can only tremble where I stand
Looking at a perfect hologram
I can see a misty sky
In a rainbow-colored light (whoa!)
Even far away, I hear it calling me – yeah!
Whoaaa!
Finally, the rain begins to clear one afternoon
And it’s like the light is reflecting from heaven
Sneaking a glimpse out, just for me and you
And it’s like a watercolor dream with every hue
Showing me the beauty that I was too blind to see
All because this world’s like nothing I have ever seen
Linked Here is a tumblr post describing the in-depth research author Hiromu Arakawa based Fullmetal Alchemist upon, including parallels to the Emerald Tablets of Thoth, Hermetic Mentalism, and many other alchemical parallels.

Tell me, what are your favorite moments, themes, characters, and plot lines in FMA, either in Brotherhood, the 2003 anime, or the manga?
What anime should we discuss next? I was thinking Gurren Lagann!
And here are my tarot cards! I apparently, have no idea how to use my scanner and did my best! Riza is my favorite, the High Priestess is special to me so it's perfect! I'd be happy to share them all! There are black cards and white cards, they are very thick and shiny. The book, is awesome, you can open it from either side, no spine, and the pages stretch like an accordion.
This is one of my favorite animes/mangas and very very dear to me. I cannot express how incredible it is with words well enough. Brotherhood goes with the manga but the other one is so good too. Heck even the weird movie is good! This show is so inspiring! It always makes me cry, even though I know it by heart.
Two of my favorite quotes are-
"I don't know if you actually exist or not, God; but cut me some slack. Even a guy like me needs a break. Please, let me enjoy the happiness of having a cup of coffee with my family."- Dr. Knox
"I'm not afraid of dying. What I fear is living a life where I can't stand to look at myself in the mirror." - Edward Elric <been reminding myself of this one a lot>
Yes let's talk about Gurren, because its one of the few I don't know very well! I also have lots of other ideas too but am excited to see what other folks like! Sorry if editing was poor, I tried!