A massive sea stack famous for its appearance in The Goonies.

A huge musical instrument played by the ocean.

Quite simply the largest tree in the world (by volume).

Four hundred granite steps were built into this massive rock by the National Park Service.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Largest man-made excavation on earth!

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Visitors to this library are in for a real-world education in modernist architecture.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

One of the last free public hot springs is decorated with hippie art.