We think our feet are always on solid ground, but in Florida it's more like Swiss cheese. Dick speaks to Casey McKinlay, who, along with his diving partner Jarrod Jablonski, pulled off a 21-hour dive through underwater caves that connect sinkholes.
"Already Replaced" by Steve Hauschildt
What did historic explorers such as Sir Ernest Shackleton and Douglas Mawson eat in Antarctica?
A quest to photograph the world's oldest living organisms.
The keeper of Long Island’s Montauk Point Lighthouse talks about her night during Hurricane Sandy.
Dick checks back in with Ken Ilgunas, who finished his walk from Alberta, Canada, to Port Arthur, Tx. - the proposed 1,700 mile pipeline.
We talk with an Inupiat Eskimo leader about impending oil drilling in Alaska.
A scarred Callery Pear tree was pulled from the rubble of the World Trade Center in 2001 and given to the city nursery to see if it could be saved.
Lauren Valentino and Jarratt Moody went on a trip to visit some 70 state parks in California that are slated to be closed to save money.
Sean visits old school audio collector Randy Riddle in his Mebane, N.C. home where they listen to vintage transcription disks from WWII.
Guest host Phoebe Judge talks with high-wire walker Nik Wallenda about his planned walk across the Grand Canyon.
A group of students and professionals created a human-pedaled helicopter that can rise higher than 10 feet and hover for more than a minute.
Days after the Boston Marathon bombings, Magomed Imakaev’s seven-year-old daughter asked him a question that he didn’t know how to answer: “Dad, did you hear that the two bombers were Chechen?”
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