This concrete communications and observation tower in downtown Toronto, Canada stands at 1,815 feet (553 m). When it was completed in 1976 it was the world’s tallest free-standing structure. The CN Tower is a symbol of Canadian achievement and in 1995 it was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers.
Is a temple located on the Athenian Acropolis in Greece and dedicated to the maiden goddess Athena whom the people of Athens considered their patron deity. Construction began in 447 BC when the Athenian Empire was at the height of its power and was completed in 438 BC. The Parthenon is the most recognizable enduring symbol of ancient Greece, Athenian democracy and western civilization.
The Tower of the Americas is a 750-foot observation tower/restaurant on the southeastern edge of Downtown San Antonio, Texas, USA. The tower was built as the theme structure of the 1968 World's Fair. It was the tallest observation tower in the United States until 1996 when the Las Vegas Stratosphere Tower was completed.
The Jacob K. Javits Convention Center of New York opened in 1986. Named after Senator Jacob K. Javits (US Senator District 1957-1981), the glass-enclosed building was designed by I.M. Pei & Partners. Javits is the busiest convention center in the United States attracting top tradeshows and hosting more than 2.5 million visitors annually. In 2013 the Center completed a major renovation that includes a new roof, replacement of the exterior glass wall, upgrades to the mechanical and electrical systems and interior reconfigurations. Designed by Javits II Architecture, LLC, the renovation has enhanced the visitor experience and the building’s operational efficiency while remaining true to the original design concepts.