11. Dumbarton Oaks Gardens – USA
You can feel like you are in one of the gardens of the richest houses on the north end of Georgetown, one of Washington’s most fashionable neighborhoods. The vines that also cover the Fountain Terrace go down from the stone walls. The Lovers Line curls like a Roman-style amphitheater built around a small, deep, and blue pool. This simple road going on is now known as Melisande’s Allee. Perhaps the unforgettable opera Pelleas et Melisande is referred to.