The Indian Astronomical Observatory (IAO), located in Hanle near Leh in Ladakh, has one of the world's highest located sites for optical, infrared and gamma-ray telescopes.

The Indian Astronomical Observatory stands on Mt. Saraswati, Digpa-ratsa Ri, Hanle in south-eastern Ladakh union territory.

• It is operated by the Indian Institute of Astrophysics, Bangalore.

Hanle Monastery is a 17th-century gompa of the Drukpa Lineage of the Kagyu school of Tibetan Buddhism located in the Hanle Valley, Leh district

Hanle Monastery belongs to the Red Hat (Tibetan Drukpa Kagyu) sect of Tibetan Buddhism.

• Also known as Hanle or Analy Gompa,