Built adjacent to Red Square, Moscow's Zaryadye Park, the city's first new park in 50 years, recreates Russia's many landscapes in the center of one of the world's biggest, busiest cities. The park, which features 32 undulating acres covered in native plants and trees, was designed by American architect Charles Renfro, who was responsible for New York's High Line. Correspondent Liz Palmer talked with Renfro and with landscape architect Mary Margaret Jones about the backstory of this grand, romantic public space.