Out of 8 planets in our solar system and around 10,000,000,000,000,000,000,000,000 planets in our universe (observable), how legendary is it to live in a planet that is home to myriads of life forms with a hospitable blanket of atmosphere that keeps life going in the universe? From the most sophisticated living creature, Man, to the glorious saga of the unfolding of various living creatures, our planet is unique in every way, and that's why - There's no place like home!

With more than 200 countries and 7 billion people, indeed, our world is a fascinating yet weird place. Today, in the World of Amazing Facts, we present interesting world facts - about our planet and everything in between.

Read on to uncover the strange and unknown facts of the world that you probably haven’t heard before.

1. A Bridge That Speaks!

   
   Source: CNN

   You might not believe us but it's true that the very beloved Golden Gate Bridge of San Francisco recently started speaking up about some modifications made to its handrail on the driving path.

   The bridge had quite a loud voice and eerie sounds of the bridge were heard several kilometers away!

   According to the government officials, this could possibly be the case of high winds passing through the newly constructed handrails. The bridge is believed to be dangerous for users during less wind resistance. Clearly, a bridge speaking is one of the most unbelievable world facts.

2. Whales Sing - So Loud That Their Songs Can Be Used To Map Out the Ocean Floor!

   Fin whales are basically the loudest singers of the deep blue sea. Why?

   
   Source: Wikipedia

   Because the intense and bellowing songs sung by the male whales to attract mates are considered to be so loud that they can be heard from a distance of 600 miles (1,000) kilometers. The loudest vocalist of the ocean makes it possible to sonically map out the ocean floor because the sound made by fin whales can reach up to 2.5 kilometers below the sea, which reflects and helps researchers measure the ocean floor accurately.

3. Rainbow In A River!

   On a general note, we see rainbows in the sky. Right? Prepare yourself for another shocking fact about the world!

   
   Source: CNN

   What if we tell you that there's a place where rainbows can be seen underwater? Well, our world is full of amazing facts and surprises!

   Cano Cristales, also known as the 'River of five colours' glares way brighter than any rainbow in the sky. It is located in Serrania de la Macarena National Natural Park, Colombia. This one-of-its-kind stunning river's multi-coloured beauty is because of a riverbed plant, Macarenia Clavirega, which turns the river into a breath-taking sight. As the river weed blooms, the river turns into a rainbow coloured water body.

4. A City No Earthquake Can Shake!

   Another unbelievable world fact - An age-old Inca town that is located on the top of two fault lines in Peru has lived through every earthquake in history. But how's that possible?

   
   Source: Wikipedia

   Well, the Inca's very brilliant engineers, used a technique called Ashlar Masonry, where rocks are built to faultlessly fit together without mortar. During an earthquake, the stones move in their place before setting back to their original positions. Genius!

No Place Like Home!

Congratulations! You just learned some fun facts about the world that most people don't know about.

If you want to further upgrade your arsenal of knowledge, head to the Practically app and explore more about the world of science and maths through interesting 3D videos, life-like simulations, and thrilling AR experiences.

We will be back with another set of titbits of unbelievable world facts next week.

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