By Lindsay Rogers As of this Friday the 13th, the longest pedestrian suspension footbridge in the world is officially open to the public. The Sky Bridge 721 is, you guessed it, 721 meters (or roughly 2,365 feet) long and is suspended 95 meters (312 feet) above the valley floor of the Dolní Morava vacation resort, located in the northeast region of the Czech Republic. Equipped to hold up to 500 people simultaneously — per a new report from CNN Travel — it’s been under construction for the past two years and promises “spectacular views of the cloud-shrouded Jeseníky mountains.” Needless to say: …