Well seeing as the pyramid went well for a post. I figured this post will get similar results hopefully.
This is like a hourglass, but with lava. Behind that you can see a tower that overlooks my surrounding area. There is a floating smiley face above a barely visible roller coaster track made of sponge. Appropriately named the sponge bob express. Random igloo with a small little lookout on it. In the background you can see a wall. This is a castle wall that surrounds the perimeter of my home.
Here is a structure i made of my guitar. Now i couldn't finish the neck all the way because i hit the sky. But the body is still similar. Behind that is a blue building that needs a logical gate combination to open the doors to get in. Those small blocks and red lines in the background are just a bunch of logic gates.