Quite simply the largest tree in the world (by volume).

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Living trees form the structure of an open-air palace.

Windswept and remote, this island was once the home of a rare mammoth and today is home to a rare tree.

Gorgeous purple flowers drape from the world's largest blossoming plant.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Thousands of flowers create enchanting pink tunnels over the city streets.

Cherry blossom season comes early in this Japanese town where pink flowers line the streets and riverbanks.

This massive redwood tree has a hole in the base big enough to drive through.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

The largest greenhouse in the world is home to over one million types of plants.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

Two thousand artifacts from around the world collected by one woman who loved to travel.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

One of the now-less-hidden floral gems of the "Emerald Necklace."

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.