Highlights of the week In this edition: Hannes Laneder’s pedal-powered sports car, award-winning German photographer Horst Hamann, Art Basel through the eyes of a collector, Britain’s Cloud Appreciation Society, and the best from our series on the St. Thomas Boys’ Choir. Easy Rider When the Austrian artist Hannes Langeder takes his home-made car out for a drive, heads inevitably turn. His model looks like a luxury Italian sports car -- but it's pedal-powered like a bicycle. A spin in the world's slowest speedster. Vertical Portraits It was back in the early 1990s that German photographer Horst Hamann had the idea to turn his panorama camera upright - and his resulting series of photographs of New York cast a brand new perspective on a city many thought had been photographed to death. More vertical portraits followed and today he's based in the Big Apple - but we caught up with him in Istanbul. Exhibition Fever Art Basel opened Thursday, welcoming top-notch artists and dealers, collectors, curators and critics to the world's biggest and most important fair for modern and contemporary art. Nearly 300 galleries are showing a vast array of works by 2,500 artists -- from post-war masters to a new generation of emerging stars. We asked an avid collector to give us a tour. Cloudspotting Britain’s Cloud Appreciation Society brings people together to stare at the sky. The organization has some 30,000 members, who meet up in groups for cloudspotting sessions. They also photograph unusual cloud formations. Their best shots have just been published in the book Clouds That Look Like Things. Young Voices - Old Traditions Leipzig’s world-famous St. Thomas Boys Choir is marking the 800th anniversary this year. The choir is made up of about 100 boys between the ages of 9 and 18. We look at this renowned institution, its history and how it operates as it prepares for a big concert at the Bach Festival on its home turf.