The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Peruse rare tomes like poetry bound in pearls or books with branches and berries growing out of their spines.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

A fitting attraction for the corn capital of the world.

Population: 1.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

An architect's childhood fantasy treehouse made real.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

This museum glorifies the humble potato.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

340 bicycles, 65 feet high.

An optical illusion found amid a logged redwood forest.

Canyon walls shrouded in ferns.

Treehouse motel and treehouse-building school.

Rustic natural hot springs in the deciduous rain forest.

This charmingly homemade amusement park has been growing for 40 years.

This bridge provides safe passage for squirrels.

The colorful, smiling concrete silos of Vancouver.

Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.

This Elizabethan hedge maze is one of only six in North America.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

Traditional 15th century Chinese garden in the middle of Vancouver.

At just six feet two inches deep, it is said by Guiness and Ripley to be the world’s narrowest freestanding office building.