The first solar-powered plane flew cross-country this weekend. – USA Today
Singapore is going greener with vertical farms. – NY Times
Would you sleep in the belly of a crocodile? It’s just one of the eight buildings shaped like animals in this round-up. – CNN Travel
Tipping Tips: A global gratuity guide. – Huffington Post
Celebrate the Lincoln Highway’s 100th birthday with the ultimate U.S. road trip. – NY Times
It’s National Ice Cream month, check out these crazy flavors from all over the world before choosing a scoop for yourself. – Intelligent Travel
What stories caught your eye this week? Tell us in the comments or on Twitter at @goaheadtours.