What are the tallest non-human built structures?

The tallest non-human built structures are all found in nature! Here are some examples:

1. Redwood Trees:

* Hyperion: The tallest known tree in the world, reaching a staggering 380.1 feet (115.85 meters) in height.

* General Sherman: While not the tallest, it's the largest tree by volume, standing at 274.9 feet (83.8 meters) tall.

2. Coastal Redwood Trees:

* Redwood National and State Parks: These parks in California are home to many of the world's tallest trees, with numerous specimens exceeding 300 feet.

3. Mountain Peaks:

* Mount Everest: The highest mountain on Earth, reaching 29,029 feet (8,848.86 meters) above sea level.

* K2: The second highest mountain, towering at 28,251 feet (8,611 meters).

* Kangchenjunga: The third highest mountain, at 28,169 feet (8,586 meters).

4. Other Natural Structures:

* Giant Sequoias: While not as tall as Redwoods, these trees are known for their massive size and volume.

* Bristlecone Pines: These trees, found in the White Mountains of California, are the oldest living organisms on Earth. While not reaching great heights, they can live for thousands of years.

* Giant Fungal Colonies: The largest living organisms on Earth, some fungal colonies cover many acres and are incredibly long-lived.

* Coral Reefs: While not a single structure, coral reefs are complex, massive ecosystems created by countless organisms.

It's important to note that the heights of trees can fluctuate due to natural factors like storms and fires. However, these examples provide a good idea of the impressive scale of nature's architecture.