Is also known as the White Heron Castle because of the way that its soaring white stucco walls resemble a graceful heron taking flight. The original fortress was built in 1346 and the castle in its current form was completed 1610. The castle is full of defensive features however it has never been attacked in its 400 year history. In 1993 it was designated a World Heritage Site.
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.