A small but immensely extravagant palace built by the "Night King."

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The most visited, and possibly most controversial, museum in Germany.

The fairy tale castle of the "fairy-tale king."

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Watch the newest land on the planet form before your eyes.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

This black shoreline is made up of exploded lava particles.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.