People still speak of the Seven Wonders of the Ancient World, but today's architectural and engineering marvels put them to shame. This new edition of Great Modern Structures profiles over 60 spectacular structures built over the last 100 years. From Dubai's Burg Khalifa--the world's tallest tower--to the Millau Viaduct Bridge in France, supported by concrete columns taller than the Eiffel Tower, this technically detailed, beautifully illustrated guide celebrates human ingenuity and daring.