An inflatable exhibit of a heart includes an inflatable infrastructure inflatable to a three-dimensional partial representation of the heart at a scale greater than at least, 10:1, but more preferably greater than 20:1, and most preferably, greater than 25:1. The infrastructure includes a cross-sectional plane thereacross. The exhibit further includes a walk-through passageway defined, at least, in part by the inflated infrastructure, and extending through the inflated infrastructure. The cross-sectional plane defines a plane of the passageway.