This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

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

In Hong Kong, a fairytale flower tunnel is hidden within the gardens of a public housing complex.

The only working large-scale tea plantation in the United States.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This tangled English forest looks like something right out of a fairytale.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

A pretty park of over 1,600 olive trees that grew from just three saplings brought over from Spain.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

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

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.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

From Japan to Italy, this California park explores the world's cultures through their gardens.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

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

The sign at the garden gate reads: "These Plants Can Kill."