San Francisco’s Mosaic Staircase. Hidden art gem in San Francisco; head to and Moraga to discover The Avenue Tiled Steps. Not only will you be able to see some amazing views of the city, you'll get to appreciate a beautiful mosaic running up 163 steps.
Senegal's Lake Retba, or as the French refer to it Lac Rose: harmless halophilic bacteria make the water pink. Lake Retba has a high salt content, much like that of the Dead Sea, allowing people to float effortlessly in the massive pink water.