2. Svalbard Global Seed Vault, Norway

Just from the picture, you can tell this is not a place people will easily stumble upon, and that is for a very valid reason. The Svalbard Global Seed Vault in Norway is sometimes referred to as "The Doomsday Vault," and it is an important place for all of us. The vault is home to 100 million seeds from all over the world. 

Why are these seeds under high security, you ask? If there ever were a horrific disaster that wiped out the plant kingdom, the seeds could restore our natural vegetation. It is built to outlast any natural disaster, and it is very high above sea level in case of flooding due to sea level rises. Interestingly, the vault knows no politics because even North Korea has contributed seeds.