Coolest expo

What is an expo?
If you look it up on google, expo mean "a large international exhibition".
Some examples of some cool expos that i found were pinned on pinterest, which i have taken a screenshot of and attached to this. 

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   I think that these examples are really interesting and show a variation of that could be offered to people and how far people take their displays. It shows some inspiration with what my group and me could do.