a unicycle!his bike may look liked something out of the circus, but there's a group of people who are devoted to riding it. >> my favorite part about unicycling is that it is different from other sports and it's really fun to learn new tricks. >> probably the adrenaline when you ride and the balance techniques. >> my favorite part about unicycling, if you're riding around town is people notice you and talk about you and you feel special. >> so what is this group that you have? >> this is the new york unicycle club. i founded it along with a friend and my brother back in 2001.í >> now david's group has over 300 members, both young and young at heart. most historians believe the unicycle was created in the late off-roading and even one called the impossible wheel. >> so what is the impossible wheel? >> a wheel, two platforms and nothing else. you stand on the platforms and something has to make you go. you throw them and then jump on while they're moving. >> okay so what about a possible unicycle,

prisoners are encouraged to exercise in state of the art gyms with personal trainers and unicycle classes. some norwegian prisons boast massive rock climbing walls and music classes, so they can form rock bands and record music in professional studios. >>> friends and family testify amy winehouse are saying good-bye at the funeral did. amy's father delivered the eulo eulogy. he ended by saying, good night, my angel, sleep tight. >>> the producer behind her award-winning album was seen entering the cemetery as well as kelly osbourne. no cause of death yesterday, but toxicology results are expected in 2 to 4 weeks, of course winehouse did several stints in rehab. >>> california is closer than ever to having the dream act. governor brown signed essentially half of them. the other half of the bill would allow those students the same financial aid that american citizens receive, and that is working its way through the state assembly. ooo. sounds pricey? nah, with the hotels.com summer sale, you can find awesome deals for places nearby. interesting... wow, i'm blown away. you look great. hotels

>> a little montage of the hoop dancer and unicycle girls giving a basic feeling of the show along withf this. but you can't because of the -- so this is just a little taste of it. >> let's go on the journey. >> merci, melanie. ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ >> wow! pretty amazing. i love it. all right. coming up next, sarah hanes is going to take us on a walk through montreal. >> we're going to the biodome. >> that was unbelievable. >> thank you, everybody. thank you so much. >> we'll be right back after these messages. >>> now it's time for very special installment of "sara in the city." she becomes this animal expert and goes to the biodome, and i guess hilarity ensues. let's look. >> a hop, skip and a jump from downtown montreal is the biodome. the name means literally the house of life. and inside, you can travel through four separate ecosystems and visit thousands of animals without ever leaving the building. i got to go behind the scenes of this major mecca to try my hand at animal characters. so, first, what we're going to do is we're going to feed the capabarras. the largest rodent in the