Exploratorium Exhibit Index

Brings back many happy memories.

Here's a nice reference list of exhibits. Some also have posted explanations. http://www.exploratorium.edu/xref/exhibits/exhibit_index.html

Or, for the more experienced scientist, an index by phenomenon.

http://www.exploratorium.edu/xref/phen_index.html

Lastly, for those who prefer to roam around, an area index.

http://www.exploratorium.edu/xref/area_index.html