This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Stroll through a wonderland of stupendous moss-covered trees.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A walk through the historic city center, under the streets of Seattle.

Kakadu National Park is known for its stunning beauty and its rock art, which represents the longest historical records of any continuous civilization on Earth.

A spring water stream jumps through a walkable "bridge" cavern and a narrow canyon.

Located in the place where the Columbia space shuttle came down, a museum-memorial that is both touching and informative.

This medieval village/restaurant perpetually celebrates the year 1376.

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

This Cold War missile launch site has been abandoned for 40 years.

Four abandoned towers hidden above the Douglas fir forest in Washington.