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

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

A luxuriant botanical garden below sea level.

London's old-school healing garden.

The oldest surviving botanic garden in the United States.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Nine Gardens in one—with tea service.

A 30-acre garden inspired by the principles of modern physics.

Olfactory delights in San Francisco's Botanical Gardens.

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

Started as a kitchen garden, now the second largest botanical garden in the world.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

An engineering wonder at Pillnitz Castle protects a precious 230-year-old flowering shrub.

The plants form a living library and laboratory for researchers and students at Michigan State University.

The fantastic charm of England's oldest botanical garden has made it a place of writerly inspiration for centuries.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

This “living museum” at UCLA exhibits thousands of plant species from all over the world.