This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This café is dedicated to serving coffee roasted by Native American-owned companies.

A beautiful 62-acre Catholic shrine and botanical garden.

A library of only unpublished manuscripts.

An extraordinary mixture of natural beauty and man-made phenomena.

The largest non-native tree in Washington

The oldest apple tree in the Pacific Northwest.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

This modern arts center is built around a gem of late-Baroque architecture.

Lavish royal estate punctuated with heated greenhouses.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

The Arctic Circle runs through this isolated spot north of Iceland.

A giant concrete orb in far north Iceland marks the ever-shifting boundary.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

Walk in the footsteps of the gods and straddle two tectonic plates.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Medicinal spa created with the discharge from a geothermal energy plant.

Three columns of volcanic rock shoot out of the ocean.

A winding, blood-red tunnel of hardened lava navigable by foot.