Swallow's Nest Soup
One of the most rare and exotic dishes in the world - the well-known
Chinese soup from swallow's nests. For 400 years which have passed
from the date of the invention of a dish, it has risen in price in
times: the broth from the nest of sea martins-collocalia can cost to
gourmets in the 10 thousand dollars.

http://onlythemost.blogspot.com/2008...nd-exotic.html