1) The Galapagos Islands, located in the Pacific Ocean off the coast of Ecuador, are renowned for their unique and diverse wildlife, including the Galapagos tortoise, marine iguanas, and Darwin's finches. They played a pivotal role in Charles Darwin's theory of evolution.

2) A newborn kangaroo is about 1 inch (2.5 centimeters) long and weighs less than a gram.

3) Elvis Presley, often referred to as the "King of Rock and Roll," has sold over one billion records worldwide.

4) The Eiffel Tower can be 15 cm taller during the summer due to thermal expansion.