Greetings, my dear train enthusiasts! As a detective, I'm always on the lookout for new and exciting cases to solve, but sometimes I just like to kick back, relax, and enjoy a good train ride. And if you're anything like me, you know that one of the most thrilling parts of a train journey is crossing a massive bridge high above the ground. So, let's put on our conductor hats and take a look at some of the largest train bridges in the world, and the trains that will take you across them.

First up, we have the Danyang-Kunshan Grand Bridge in China. This impressive bridge spans over 100 miles and is considered the longest in the world. To cross this behemoth, you'll need to hop aboard the Beijing-Shanghai High-Speed Railway, which covers the distance between China's two largest cities in just a few hours. As you cross the Danyang-Kunshan Grand Bridge, you'll have stunning views of the surrounding countryside and the vast expanse of the bridge itself.

Moving on to another massive bridge, we have the Lake Pontchartrain Causeway in the United States. This bridge spans a whopping 24 miles across Lake Pontchartrain in Louisiana, making it the longest over-water bridge in the world. To cross this engineering marvel, you'll need to ride the Amtrak City of New Orleans train, which takes you from Chicago to New Orleans and back. As you ride across the Lake Pontchartrain Causeway, you'll feel like you're flying over the water, with nothing but the endless expanse of blue beneath you.

Next up, we have the Viaduc de Millau in France. This bridge spans over a stunning valley and stands over 1,100 feet tall, making it one of the tallest bridges in the world. To cross this architectural wonder, you'll need to ride the TGV high-speed train, which connects major cities across France at speeds of up to 200 miles per hour. As you ride across the Viaduc de Millau, you'll have breathtaking views of the valley below and the surrounding mountains.

Another massive train bridge that's worth crossing is the Fehmarn Belt Fixed Link in Denmark. This bridge is currently under construction and will connect Denmark and Germany when it's completed in a few years. Once it's open, you'll be able to cross it on the EuroCity train, which travels between Hamburg and Copenhagen. The Fehmarn Belt Fixed Link will span over 11 miles across the Fehmarn Belt strait, making it one of the largest train bridges in the world.

Last but not least, we have the Tsing Ma Bridge in Hong Kong. This impressive suspension bridge spans over 1.3 miles across the sea and is considered one of the largest of its kind. To cross this magnificent bridge, you'll need to ride the Airport Express train, which takes you from Hong Kong International Airport to the city center. As you ride across the Tsing Ma Bridge, you'll have stunning views of the surrounding sea and the impressive feat of engineering that is the bridge itself.

So, there you have it - some of the largest train bridges in the world, and the trains that will take you across them. Whether you're a thrill-seeker or an architecture enthusiast, crossing these bridges is sure to be an unforgettable experience. And who knows - maybe you'll even solve a mystery or two along the way, just like yours truly, Detective Pux. Happy travels!