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