5. Panama Canal (Panama): One of the Seven Wonders of the Industrial World, the Panama Canal is a man-made creation that links the Atlantic Ocean to the Pacific. The canal winds through its namesake country in Central America, but we recommend visiting it where it’s adjacent to the rainforest in Gamboa for the most Instagram-worthy vista.
6. The Great Wall of China (China): Another New Wonder, the Great Wall is actually a series of multiple walls spanning approximately 4,000 miles. Head there at sunrise to beat the crowds, and you’ll want to bring sneakers: It’s called the Great Wall for a reason.