Floating man-made island and upscale restaurant.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

A museum befitting the city responsible for supplying the majority of the world's LSD.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

An overlooked and unassuming engineering marvel.

Enormous lake at the bottom of a unique cave system.

148 feet long and in the middle of a verdant forest.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

The second-deepest known cave on Earth, hidden in an extremely remote mountain region.

Moonbows over Kentucky.

Healing Springs that once ran red with soldiers' blood.

A stockpile of childhood lunch pails turned collectibles.