Some of the world's only freshwater seals live in one very special lake in Russia.

Cold storage for agricultural biodiversity.

An isolated dive site teeming with cnidarians.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

This egg-shaped treehouse was inspired by "sport sleeping."

A reproduction of earth's many biomes.

A bizarre house filled with an astounding array of collections.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

A Studio on the Fringes of the Northeast Art District.

The largest greenhouse in the world is home to over one million types of plants.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A 30-acre garden inspired by the principles of modern physics.