This is Faucet Palace which stands in the center of the yet to exist city of Aquaia. The city resides in the world of Aerinia on the server named Xemcorp Creative [Link to server here]

Its main architecture was inspired by some organic structure which is seen in the ice roof of the main building.

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Back Story
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In the city of Aquaia the residents worship their god of the oceans called Naialin. She keeps balance of the oceans and resides in the Palace on the top of the central mountain called Faucet Palace.
The pools in the top of the tower are said to hold the power of eternal life if once drinks from them. The people have sealed off this sacred place in the top of the Palaces tower.
Many millennia ago, a spy of the tribe of the Twili of the south Dreadlands was sent on a mission to taint the pools of life and succeeded resulting in the corruption of the god Naialin. She flooded the city and created tsunamis across the world. A mysterious man sacrificed himself to purify the waters and calmed the raging God.

Additional Notes

the central platform rises into the top of the palace using controller blocks.