Fortresses and historical landmarks are a great place to rediscover the history of the place where you come from and the Huelen Zant is one such place that guarantees you a date with history. Located and preserved in the capital city of Luxembourg in Luxembourg, this monument literally means hollow tooth and are one of the few elements of the old fortress that was not entirely razed. Declared a UNESCO World Heritage Site in 1994, this historical landmark is an ideal place to explore with your friends and family and is open twenty-four hours a day, all through the year. The site offers some majestic and rugged views of the past.