There's a reason they say that your passport is your ticket to the world. It is, quite literally, essential for international travel and you can't cross international borders without one – even when it's returning to your home country. This means that if you lose your passport in London, you're in a pickle: you can't stay in London – and you can't go home. What to do, what to do?!...

London is a city known for many things – and gray, rainy weather is one of them, right? Not true! London is a city with dynamic seasons. Sure, there's a grayer, rainier time of year (winter), but there are also spring showers and flowers, sunny summer days, and crisp, clear autumn afternoons...

After a long, fun day of adventure exploring London, most visitors do one of three things: they head back to their hotel, they tuck into dinner at one London's many fabulous restaurants, or they pop into a pub for a few pints before dinner and then their hotel. But some savvy travelers know to keep their eyes peeled on the sky as the day winds down – depending on the time of year, of course; sunset in London is stunning and shouldn't be missed if you see a good one starting...

Dating back to 1863, the London Underground, or Tube, is the world's oldest metro system. It's operated by Transport for London (TfL). It is one of the most efficient public transit systems in the world and carries millions of passengers each and every day. It's one of the best ways to get around London, and one you'll probably try, whether that's getting to/from the airport, sightseeing, or just to get to another train station for a day trip beyond London...

Is there anything more magical than watching the world come to life before your eyes at the start of the day? When I lived in London, the dawn hours were one of my favorite times of day: I would rise early, lace up my running shoes, and hit the streets to run along the Thames. On weekend days, most people were still sleeping off their previous evening at the pub, and I got to watch the whole city wake up around me after sunrise in London...

London is an electric place to visit – both figuratively and literally. As you research and plan your trip to London, you might have realized that things work a little differently across the pond than they do here in North America. Specifically, the U.K. uses entirely different electricity technology – different plugs, different outlets, different everything...