Julian Medina took his travels a little beyond the standard two-week vacation abroad. Out of thousands who entered the contest last year, the lucky Colombian won a gap year allowing him to visit 12 countries in 12 months, sponsored by Havana Club rum. The journey recently concluded, but you can read all about it on his Tumblr. Highlights include a crash course on making daiquiris for customers in Havana, traveling the Trans-Siberian Express from Moscow to Beijing, and touring Canada with a jazz band called the Shuffle Demons. Medina’s first rule for traveling solo? “Don’t forget to smile. ...