les invalides, with its golden dome marking napoleon's tomb, is magnifique.he naughty blades of the moulin rouge keep turning, and its red lights tempt lost souls in pigalle. just to be out and about at this hour, the energy of the city is palpable. notre dame is particularly stately after dark. sightseeing boats enliven the river and its sparkling bridges. the pyramid at the louvre glows from within. and the eiffel tower provides a fitting finale for this victory lap through the city of light. ♪ >> hello and welcome to "in good shape," your health magazine on dw coming to you from berlin. great, that you are watching. watching, that brings us right into the show. today's main topic will be your eyesight and here's what else we'll have for you. improving your eyesight, how adults and children can boost their vision. looking after your teeth, why bleeding gums have to be taken seriously. and perfecting heart surgery, how new technology can help doctors pinpoint the cause of an irregular heartbeat.