Mehtab Bagh (Moonlight Garden) is Agra's best-kept secret, a serene Mughal-era garden perfectly aligned with the Taj Mahal across the Yamuna River. Its white marble platforms glow under moonlight, creating a mirror image of the iconic mausoleum. Come at sunset to watch the Taj transition from golden hues to silvery-blue under the stars. Legend says this was where Emperor Shah Jahan planned his black marble tomb, now transformed into a lovers' paradise. Don't miss the surreal view of dual "monuments of love" reflected in the Yamuna River – a photographer's dream come true!