Worlds largest cave can fit a 40 story building, and even has its own jungle.

http://gizmodo.com/5722223/worlds-largest-cave-is-big-enough-to-fit-a-skyscraper-and-even-has-its-own-jungle

Now this is impressive :shock: (Be sure to follow the link at the end of the article to National Geographic, they have some really impressive images)

Now that is rather awesome.

Wow, that is really awesome. Great find Darth.

I wish there were underground cities. That would be so awesome. Don't think I'd like to live in one, but going to one occasionally would ben ice.

That's freaking amazing, so cool.

So Mammoth Cave is no longer the biggest?

That is just... WOW :shock:

That's amazing!

The thread title makes me think of dirty immature thoughts.

So Mammoth Cave is no longer the biggest?

Star67

Cool stuff there. The pics are pretty breathtaking.

Dont go in! They'll get you!

This pic is pretty cool.

This pic is pretty cool.

Lto_thaG

The crawlers are coming...

Thats a place I'd like go visit one day. But we might find mutant monsters in there! :o

That's awesome...

and the fact that they only found it 20 years ago goes to show how much of the planet is still unexplored.

OH NO THEY"VE FOUND US PRECIOUS!!!!

Woah. Best place to escape from zombies that's for sure.

So Mammoth Cave is no longer the biggest?

Star67

Depends on term biggest.

Longest: Mammoth cave

Largest open space(caverns): This cave.

Mammoth was never known for huge open areas.

Holy crow that's awesome! It's pretty cool how a waterfall formed right infront of them.

Also I found it interesting that they use bomb craters as fish ponds today.

Wow, that's so cool! :shock:

Anyone have a clue as to what kinds of plants have grown there? I'm assuming the hole at the top must be gaping since there seems to be non-moss plantlife there...

mrbojangles25

Which movie is that image from? :shock:

The Descent. It's really good. http://www.imdb.com/title/tt0435625/

The Descent. It's really good. http://www.imdb.com/title/tt0435625/6_Dead_360s