it's no secret that hollywood hunk kellen lutz is ripped. off that muscle on this australian cliff, posting heart-stopping photos to instagram, "i did 20 push-ups and 20 pull uls but don't try this workout at home." >> hit the bulls eye. >> reporter: lutz is no stranger to intense stunts, hosting the extreme challenge competition show "bulls eye" on fox. >> get ready. take aim. it's going to be really close. this is "bull's-eye." >> reporter: adrenaline junkies pushing the limits of gravity and common sense more than ever. just last month, thrill-seeker toby seger, featured in the documentary "store super tramps," pulling on of this stunt on a norwegian cliff. 2,300 feet in the air. does your mother know you're doing this? >> sorry, mom. >> reporter: just months ago dear definitely james kingston became the first person to stand on top of the wembley arch, 425 feet above london. he tries to explain. his death-defying drive, "don't look down" documentary. >> in ways i am attracted to fear. i think it's that mental challenge. that constant des

. >> when kellen lutz is thinking of workout, he's thinking loftier than that. here's what we mean.ctures showing himself on a precarious looking rock formation high above a beach in australia. >> a floating push-up there. he's even hanging below the rock. is this real? the twilight hunk is down under shooting a science fiction action film. that doesn't mean he's not keeping himself in shape. those pictures from the rock he says "don't try this workout at home. solid advice." >>> finally, we had harry and sally reimagined. it is time to do the same thing with peggy bundy. you remember her? she was katie siegel's character was married to al bundy played by ed o'neill on the classic sit-com "married with children." now for the reimagined part. >> sophia vergara dressing up as peg bundy with a huge red wig and everything else she asked do you like this look, ed o'neill? >> ed is the common thread through all of this. he plays jay prichett, the husband of her character on abc's "modern family." we're not sure if her costume will play a role in the upcoming season which gets under way se