- How much of the cave is underground?
- So what's in the unexplored part of the cave?
- Does it ever rain in here?
- How many Ping-Pong balls would it take to fill this up?
- So what is this -- just a hole in the ground?
Yosemite National Park...
- Where are the cages for the animals?
- What time do you turn on Yosemite Falls?
- Can I get my picture taken with the carving of President Clinton?
Yellowstone National Park...
- Does Old Faithful erupt at night?
- How do you turn it on?
- When does the guy who turns it on get to sleep?
- We had no trouble finding the park entrances, but where are the exits?
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