Not
only Agra but the whole region including Mathura and Vrindavan have a
unique place in the cultural world of India. While Agra is known for its
historical monuments, Mathura and Vrindavan are basically known as the
major pilgrimage centers for Hindus for their long association with Lord
Krishna. Both these sister cities have a number of significant and
beautiful temples. The other place that is worth visiting near Agra is
the Keladeo Bird Sanctuary of Bharatpur where a number of birds find
their refuge and is ornithologist's delight.