Oldest building in California still in use.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

Mexican food and folk art.

The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

This California tree is the single source of the state's entire orange industry.

A world-class observatory in the California desert.

Famous and forgotten figures lie beneath the faded headstones and decaying planks of wood.

The longest manmade tunnel in Queensland is now a beautiful trail, home to a special colony of bent-wing bats.

This path is named for a mythical half-boar, half-deer creature that once roamed the Green Mountains.

This beautiful ridge-top trail is dotted by tiny homes apparently built by a group of itinerant fairies.

This 75-year-old Shakespearean sculpture is painted by a local artist for every season.

This stately structure has been abandoned for half a century.

This mysterious petroglyph evokes the ancient swastika symbol but was later vandalized with the more troublesome Nazi one.