The term skyscraper was first used in the 1880s after the first 10 and 20 story buildings began popping up all over the country. Skyscrapers were made possible by several different technological innovations including the elevator, central heating, and the telephone.

Skyscrapers also rely on modern building materials. Concrete and steel form the backbone of the modern skyscraper, allowing the builder to reach greater heights. Over the past decades, many advances have been made in the development of tall buildings. While the first skyscrapers wowed the world at ten or twenty stories, currently the tallest building in the word is over 2,700 feet tall.

What information would be useful for a paper on the tallest skyscrapers?