Google has been ranked No.1 in Fortune's latest annual list of '100 Best Companies to Work For.' Wondering why?

The Internet search engine giant, which employs 18,500 people in the U.S. (or over half of its global headcount), is one of the most sought-after employers worldwide. Why? It is because of Google's corporate culture. My job as a leader is to make sure everybody in the company has great opportunities, and that they feel they're having a meaningful impact and are contributing to the good of society. As a world, we're doing a better job of that. My goal is for Google to lead, not follow that, Google co-founder Larry Page said.

Google's creative and innovative corporate culture help its employees thrive - they work hard and play hard.

What makes Google so different from other companies? Could it be the on-site perks that include medical and dental facilities, valet parking, oil change and bike repair, free washers and dryers, and free breakfast, lunch and dinner on a daily basis at its numerous gourmet restaurants on its Mountain View campus? Or could it be the special and unique benefits that include opportunities, to learn, grow, travel, and, hold your breath - have wild, zany fun during the workdays?

Is it because of the Global Education Leave program that enables employees to take a leave of absence to pursue further education for up to 5
years and $150,000 in reimbursement? Or could it be other thoughtful offerings such as unlimited sick leave, a $500 take-out meal fund for new parents, opportunities to ask the founders about their vision for the future of the company, or a chance to be involved in significant community service? You will be surprised to know that it is really not one of these items that have made Google a great company to work for. Rather, it is a combination of them and more that have made Google an incredible, sought-after workplace.

The reason why Google is such a great workplace, is because the company believes that treating people well is more important than making a lot of money.

However, there is no magic formula or rocket science to it. It's all about treating people with respect, supporting their creative endeavors, and working hard to adhere to their motto of Don't be evil. And, its efforts are paying off.

Here are top 5 reasons why Googlers (as Google employees are called) and we think Google is such a great workplace. Start the slideshow to check them out.