Tiwanaku

High up in the Andes Mountains of Bolivia, where the air is cool and thin, I rest near a sparkling lake. The sun shines brightly on my giant stones, which were cut so perfectly they fit together like pieces of a giant puzzle, with no space in between. I have watched the clouds drift by for thousands of years. I am the great city of Tiwanaku.

My story began a very, very long time ago. The first people came to live here around 1500 BCE, but my grandest days started much later. Around the year 400 CE, the Tiwanaku people decided to make me into a magnificent city. They were amazing builders and stargazers. They shaped my Akapana pyramid to look like a sacred mountain that touched the sky. They built my Kalasasaya temple as a giant calendar to watch the sun and stars, so they always knew when to plant their crops. One of their most incredible creations is my Gateway of the Sun. They carved it from a single, huge stone. On it, you can see a special figure who looks like a god, watching over everyone. It took so much teamwork to lift and carve my heavy stones without any of the machines we have today.

For hundreds of years, between 500 CE and 900 CE, I was a bustling capital city. My plazas were filled with people who traveled from far away to trade colorful woven cloth, tasty potatoes, and bright yellow corn. The farmers here were very clever. To grow food in the chilly mountain air, they built special raised fields that kept the plants warm and watered. On festival days, I would hear the happy sounds of music from flutes and the cheerful chatter of people celebrating together. Life was full of energy and purpose.

But after many centuries of busy life, things started to change. Around the year 1000 CE, people slowly began to leave me. No one knows for sure why they went away. Perhaps the weather changed, making it too hard to grow food for everyone. I grew quiet. My grand plazas became empty, and my stone walls stood silently. For a long time, only the wind and the fluffy llamas were my companions. My secrets were waiting patiently under the mountain sun to be rediscovered.

Today, I am no longer quiet. People from all over the world make the journey high into the mountains to come and see me. In the year 2000, I was named a UNESCO World Heritage Site, which means I am a special treasure for the whole world to protect. Archaeologists carefully study my walls and gateways, learning more about the brilliant Tiwanaku people who built me. I am so proud to share my story. I am a reminder that with skill, imagination, and teamwork, people can create amazing things that last for thousands of years.