The towering Chichen Itza Pyramid in Mexico is a world-renowned symbol of immense archaeological and cultural importance. While visitors are welcome to view the exterior, entry and climbing are strictly banned to protect the integrity and historical virtue of the site.
10. Google Data Centers
Where: North America, Asia, Europe, and South America
source: Shutterstock
Google’s global data centers, spread across four continents, operate as strictly guarded environments available only to authorized employees. Functioning non-stop, 24/7, and consuming massive amounts of electricity, these centers play a critical role in maintaining Google’s digital infrastructure, with setup costs rumored to be in the billions of dollars.
11. Mariana Trench
Where: Western Pacific Ocean
source: Shutterstock
The Mariana Trench represents the deepest known point of the world’s oceans, plunging to a staggering 36,070 feet. Located east of the Mariana Islands, this deep chasm holds some of the planet’s least-studied and most mysterious ecosystems. The pressures at these extreme depths are literally crushing. Only a handful of daring expeditions have ever reached its bottom, uncovering unique creatures adapted to the harsh conditions. Unauthorized travel is highly discouraged due to overwhelming technological and safety risks.
