Top 10 gardens around world

Dumbarton Oaks

Dumbarton Oaks (Washington, D.C.)

You might feel as though you've stepped into a Merchant-Ivory set in any of the gardens that make up this estate at the north end of Georgetown, one of Washington's poshest neighborhoods. Vines tumble down stone walls enclosing the Fountain Terrace. Lovers' Lane meanders past a Roman-style amphitheater built around a small deep-blue pool. And what used to be a simple cow path leading away from the pool is now called Melisande's Allée, perhaps as a nod to the haunting opera Pelleas et Melisande.