This beautiful Croatian fortress is haunted by legends of forbidden love.

Island wonderland for communist autocrats.

An ancient knight and a symbol of the city's freedom.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

This picturesque medieval monastery guards a small trove of historic treasures.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

Humble beginnings for one of the world's most famous scientists.

This huge metal monument is slowly being stripped to its concrete skeleton.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

Where the lovelorn find a home for their sentimental keepsakes.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An ethereal glowing blue ocean cave in Croatia.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

Make it an offering.

Its 27 graveyards represent the many nationalities and ethnic groups that voyaged to this wilderness in the late 19th century.

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

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

This metallic stampede sits frozen on a Washington ridge yet the artist's vision is still incomplete.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

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

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.