Lovely fake rocks in the amazon exhibit of the Audubon Aquarium of the Americas. Pro tip: if you are creating a jungle, have a good supply of CAUTION WET FLOOR signs.

The largest unnatural arch in the world is inside the Denver REI flagship store. If you go, show up early. . . there’s only one good camping spot.

the feeders at the penguin exhibit explain the challenges of maintaining a bird population, climate control, and a dwindling fish supply… luckily we don’t have to worry about these issues today.