I grew up in a city with more than 20 million people and have spent a fair amount of time in cities like Tokyo, Delhi, and Mexico City. Traffic doesn't scare me. But that was before it took almost 90 minutes to travel 26km between the Ritz Carlton and Hamad International Airport in Doha, Qatar. Temperature outside? 109 degrees. I think I'm nearing a heatstroke. And skin cancer.