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Science

(2,521 posts)

8. This makes me a little sad. The fewer the people that know about these the better.

Sat Apr 25, 2026, 01:53 PM

Saturday

Otherwise they will become tourist destinations and will be quickly destroyed.

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Highlight:

Giant sinkholes discovered containing untouched ancient forests [View all] Judi Lynn Saturday OP

KNR. As ever, in awe of your amazing finds! Thank you for sharing. niyad Saturday #1

Mother Earth protecting herself Nittersing Saturday #2

Fascinating - thanks, Judi. erronis Saturday #3

I am with you. Fly a drone and record for all to see. twodogsbarking Saturday #6

I backpacked the Grand Canyon... GiqueCee Saturday #9

WOW! SheltieLover Saturday #5

To Be Clear: The Quoted Lines Are Not From The Poem, Though I,...... ColoringFool Saturday #12

Thanks for the clarification. paleotn Saturday #15

That's just amazing! BeneteauBum Saturday #10

This planet has many wonders! WestMichRad Saturday #11

"Journey To The Center Of The Earth." ColoringFool Saturday #13

How are they always so cylindrical? dickthegrouch Saturday #14

Shangri La,... Below the ground. magicarpet Saturday #16

Thanks again, Judy Lynn! Bayard Sunday #17