While the cave formations in Crystal Cave in Sequoia National Park (CA) are undoubtedly wonderful, there is also a man made part of Crystal Cave that is bound to attract your attention. Before you enter Crystal Cave, you will pass through a spiderweb gate. With the cave formations all around, the spiderweb gate, which contains several hundred pounds of steel, gives the cave the feel of entering a haunted house:
In the center of the spiderweb gate is a spider that weighs in at 19 pounds and has the appearance that it is almost as popular to touch as Touching Rock: