I had a chance to visit the Tiny Giants: Marine Microbes Revealed on a Grand Scale exhibit this week, at the Portland Public Library in Maine. Produced by scientists from the Bigelow Laboratory for Ocean Science, the exhibit features photomicrographs of phytoplankton and zooplankton, focused on diatoms and dinoflagellates. Images on display were collected through both light microscopy and electron microscopy.
If you are within driving distance of Portland, I highly recommend visiting the exhibit (on display until March 31).
More information about the exhibit: