Lego Show at the Museum of American Heritage, 12/23/18 by Ronald Horii
Every year for the past several years, the Museum of American Heritage in Palo Alto has been hosting a holiday Lego show, in partnership with local Lego enthusiast groups. http://www.moah.org/annualEvents.html
Here's what it looked like this year.

Here are pictures from previous years, including other events:
http://www.rhorii.com/#Museums