Blue Tongue Lizard Blue-tongue Skink. Blue tongue lizards come in a variety of sizes and colours but they all have distinctive blue tongues. Their blue tongue is a defensive mechanism. When the lizard is threatened it sticks out its large blue tongue and hisses loudly to scare off predators.
A skyscraper ad is a tall and narrow banner advertisement usually placed to the right of content on a Web page. Standard dimensions for a skyscraper ad are 160 X 600 pixels. Like another popular type of Internet ad, the leaderboard, the skyscraper offers an advertiser a large space for a message.
Since its completion in 2010, the world's tallest skyscraper has been Burj Khalifa in Dubai, United Arab Emirates. The building, which was designed by the architects Skidmore, Owings & Merrill, is a mighty 828 meters tall and has 163 floors. Burj Khalifa is one of Dubai's most famous buildings.