Minecraft Players! Show me your builds!

[CosmykTheDolfyn]

Used to have a massive mansion only made of sand. To put in multiple floors, I used glass made from sand and then put sand on top of it. The roof was a massive garden, the basement was a never-ending water supply. But, the game considered in wild environment, and creepers seemed to spawn INSIDE the house at night, causing it collapse in on itself... ]=
It only went on to prove what Jimi said:

Spoiler

And castles made of sand slip into the sea, evetually...