Sai Ngam, another amazing tree (ONE tree spanning 15,000 sqm or 49,200 sq ft!) in Phimai, close to where I've lived for a few years in Isaan, the north eastern part of Thailand. There are also wonderful ancient Khmer temples similar (yet smaller) to Angkor Wat.
(text and images from http://www.blurrytravel.com/sea2003/journal/01282003/01282003.html, browse down to Sai Ngam) or search Sai Ngam:
"One of the unexpected delights of Phimai was a visit to the nearby Sai Ngam (meaning "Beautiful Banyan"), Thailand's oldest and largest banyan tree. Sai Ngam covers 15,000 square meters (49,200 square feet). At first glance, it looks like a collection of many trees, but on closer inspection, you realize that each "tree" is in fact connected, creating one massive banyan tree. This tree is so large that it has become a popular picnic spot for Thais and a small temple has even been built within its complex system of branches."
(text and images from http://www.blurrytravel.com/sea2003/journal/01282003/01282003.html, browse down to Sai Ngam) or search Sai Ngam:
"One of the unexpected delights of Phimai was a visit to the nearby Sai Ngam (meaning "Beautiful Banyan"), Thailand's oldest and largest banyan tree. Sai Ngam covers 15,000 square meters (49,200 square feet). At first glance, it looks like a collection of many trees, but on closer inspection, you realize that each "tree" is in fact connected, creating one massive banyan tree. This tree is so large that it has become a popular picnic spot for Thais and a small temple has even been built within its complex system of branches."