One Picture a Day Sampler Gallery Samples from our One Picture a Day project. Subscribe by email or RSS in the sidebar for our daily updates. Mammoth Cave, Rotunda, Historical Tour Viceroy Leaf Trust Barrels of fermenting bourbon in the warehouse Aphid Farm Pittsburgh from Smithfield Bridge in 590nm IR Yellow-Collared Scape Moth Snow Trillium Hummingbird Spreadwing Damsel Goldenrod Field Clover Car Cruise Pittsburgh from West End Overlook Snow Trillium, infrared Toad Ripples St Paul Cathedral, Pittsburgh Tatted Doily Fisherman Silhouette Lost Ash Wingstem Hens and Peeps Shoes Palamino Black Swallowtail Caterpillar Raindrops on Yellow Petal Helianthus Grass Blade Raindrops Twelve-spot Dragonfly, Biplane Stance Rhododendron bud Black Swallowtail Chrysalis Harpersfield Bridge Hulton Bridge, Oakmont, PA Prickly Pear Mammoth Cave, Vertical shafts, historical tour Overlook, in false color, Red #25 Filter and Infrared-sensitive camera Mossy Rock Wall Widow Skimmer Kennywood arcade Hillman Park View, false color infrared Iced Dogwood Down River View, Hulton Bridge, Oakmont, PA Blue-eyed Mary Wheel Bug (Arilus cristatus) Old Stone House, Slippery Rock, PA Fields of Lincoln Boyhood Home Bee in Gentian Wingstem Flowers Corpse flower Strawflower GaGa Pit Campfire under stars Longhorn Milkweed Beetle Blue Hyacinth Harpersfield Bridge False Color Swamp Thistle in Jennings prairie Raindrops on New England aster Balloon Flower Marigold Night Spider Tiger Swallowtail Butterfly, tattered Tiger swallowtail on Monarda Balloon Flower Bud Sunflower Organ pipes fire on the enemy Do Not Open Windows at Speeds in Excess of 120 MPH LoKesh Hartwood Mansion Fire Pots UPMC Tower Night Ball Mystery Eggs Hummingbird Moth (Sphinx Moth) on monarda Spotted Apatelodes (Apatelodes torrefacta). May also occur with white hair. Old Stone House Spring House