Hidalgo Pumphouse
(Hidalgo, Texas)
Not too many places can combine great history with natural abundance...The Hidalgo Pumphouse does. It tells the unique history of the Rio Grande Valley's development from a semi-desert region to a green and fertile valley, all due to the introduction of irrigation.
Also located here is a World Birding Center, which in itself is a great attraction to visit while you are visiting the area.