From the clifftop Quarantine Station to the most beautiful mausoleum in the world come on a journey through some of the world's most interesting historical structures. Discover the real story behind Transylvania's most famous castle then venture to the canal city of Amsterdam or visit Vatican City.

Amazing Structures Amazing structures are all around us! Some structures are thousands of years old with preserved histories to share. Some look to the future with inspirational sustainability features. Discover mind-bendingly unusual structures as well as those that are an important part of modern history. Find out how some of the world's most amazing buildings and structures were built and how they shape our urban environment.