Amsterdam in the Netherlands has 800,000 people who ride 880,000 bicycles. It’s a charming, very walkable city of concentric canals. The Rijksmuseum in the background contains a million pieces of art, mostly from Dutch artists such as Rembrandt. Across the street are the giant, red and white “I amsterdam” letters that have become the city’s slogan. Tourists have taken more smart-phone photos of their family and friends in front of this sign than any of the city’s wonderful architecture, historic landmarks (such as Anne Frank’s House) or cultural novelties (like the Red Light District).