I've been playing Minecraft regularly since I first downloaded it back in March. I find Minecraft to be a very addictive game and love the creative aspect in which you can build virtually anything you want within the limit of the available world resources.
I also love the survival aspect and the natural (virtual) beauty of the randomly generated terrain. I enjoy just wandering about looking for interesting features. I might stumble across a secluded pond in the middle of a deep forest, find a waterfall in a hidden valley, see towering snow-capped mountains in the distance, or sight a pool of lava bubbling away in the middle of a desert.
In one of my first worlds I found a nice area and decided to build a castle. It started from a humble cobblestone house on top of a hill to protect myself from the monsters that come out at night. I built a mine and during the days delved deep for the ores that would aid me in developing my little piece of the world. Over time I gathered my resources and expanded and modified my domain.
Here's an in-game screenshot of my castle taken back in May. I did not use any mods or editing to gather my resources. It was all built with my own virtual elbow-grease.
I flattened the land opposite my castle for the purpose of building a massive pyramid. On top of my pyramid I constructed a magical portal through which I can travel to the Nether. The screenshot below is taken from the top of my castle and without the in-game inventory being displayed.
My 10 year old daughter Maddie is also a fan of Minecraft. In fact she plays it more often than me! She has constructed some amazing buildings and has even shown me a trick or two.
For a tutorial on how to survive your first night in Minecraft view this YouTube video by Paul Soares Jr.