4: Rio de Janeiro

Seeing this breed at the top of the list probably conjures up a certain image. Often called the "little devil," Chihuahuas look adorable—especially when they're sleeping—but they may not be the best choice for households with young children. Territorial by nature and eager to be the center of attention, Chihuahuas can be surprisingly aggressive and stubborn, especially if they feel their status is threatened.

At first glance, this image looks like a mythical creature silently watching from the shadows, with piercing eyes glowing in the night. But in reality, it’s an extraordinary natural formation: two massive openings in a cave ceiling aligned just perfectly with the full moon and stars beyond. The symmetry and positioning create an illusion so surreal that it feels like the Earth itself has come alive to observe the universe. This rare and awe-inspiring moment is a perfect example of nature’s ability to mimic art. The moon appearing in one of the “eye sockets” adds an almost sentient quality to the stone structure. Capturing a shot like this isn’t just a matter of photography—it’s about timing, patience, and the luck of being in exactly the right place at exactly the right second. It’s one of those fleeting instances when the natural world seems to wink at us.

When you get up to the security area, it's important to follow all the steps as prescribed. Otherwise, you're going to be stuck there forever doing and redoing the process as the agents try to figure out if you're hiding something. Still, we've never got the process this wrong, and we can't understand how this guy even got into this position. How does one get stuck in an X-Ray machine for luggage without any personnel noticing? You can't have any liquids larger than three ounces on the flight, so we have a feeling this guy's body set the scanners off.