DD9 wants to know...

[LadyyRedd]

Now see, I could've sworn it was the elevator in my building at work because I everytime I have to get on it!

Kimya

 

[mickeyfan2]

Fire pit

 

[Northstar]

Termite mound, beehive, anthill, coral reef.... Humans lose in the first builders competition!

As far as humans are concerned, maybe a nest/sleeping place made of branches and leaves, like those that gorillas build today?