Kesaria Buddha Stupa:Largest in the World

Kesaria Buddha stupa in east Champaran district of Bihar has been recently in news due to waterlogging followed by floods.
It is regarded as the largest Buddhist stupa in the world.
The sputa’s exploration had started in the early 19th century after its discovery led by Colonel Mackenzie in 1814. Later, it was excavated by General Cunningham in 1861-62 and in 1998 an ASI team led by archaeologist K.K. Muhammad had excavated the site properly.
The original Kesaria stupa is said to date back to the time of emperor Ashoka (circa 250 BCE) as the remains of an Ashokan pillar was discovered there.
The ASI has declared it a protected monument of national importance.