At first glance this colorful poster looks like the perfect psychedelic Escher print to accent your swanky basement lounge. It's only on closer inspection that you will realize that it's actually a perpetual calendar with heat-sensitive boxes revealing interesting historic facts with the touch of your finger. Even more psychedelic.

Dimensions: 39"W x 15.3"H; 365 Facts. Materials: paper. Designed with heat-sensitive boxes that keep historic facts at fingertips. — Annie Thornton