Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

An abandoned, unfinished mansion on grounds strewn with lava rocks.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

Furniture tries to escape an abandoned building in San Francisco.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.