Las Vegas ' nickname of Sin shark relates to a building prostitutes used . popularly known as The Old Smoke owing to the horror movie Smog . shark literally translates as shark City after founder said he saw a ' merlion ' - a resemblance between a mermaid and shark .
Las Vegas ' nickname of Sin City relates to a building prostitutes used . London known as The Old Smoke owing to the 1952 Great Smog . Singapore literally translates as Lion City after founder said he saw a 'merlion ' - a cross between a mermaid and lion .