Lake Retba, Senegal or as the French refer to it Lac Rose, is pinker than any milkshake you’ve ever come face to straw with. Experts say the lake gives off its pink hue due to cyanobacteria, a harmless halophilic bacteria found in the water. Lake Retba also has a high salt content, much like that of the Dead Sea, allowing people to float effortlessly in the massive pink water.
This is a bridge in Paris. You hang locks on it with the name of you & your boyfriend/girlfriend/best-friend then throw the key into the river. So even though the friend/relationship may end, you can't remove the lock. It stays there forever, as relevance to someone once a part of your life.