My oldest grandson, age 7, had a "Museum" set up around the living room. Here is the Model Plane C130.
He also set up a "Tea set from Colonial Era 1776," on the table.
A "diarama" of Germany invading Poland.
A Pirate ship made of legos with pirates at the mast.
Treasure in the treasure chest.
World War II Helmet with gun and flag.
Red Confederate hat with a "spyglass."
Black Union hat with a cannon
Of course we had a great time. And we didn't even have to leave home.