World's largest barrel containing an inn.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

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

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Site of the greatest known waterfall that ever existed.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

The highest point in Washington state is a volcano covered in glaciers.

Granting the right of way to ships over surface traffic since 1917.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

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.

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.