Final answer:
Fallingwater is associated with the architectural style of Organic architecture, known for its integration with the natural environment.
Step-by-step explanation:
The architectural style associated with Fallingwater is Organic architecture. Designed by Frank Lloyd Wright, Fallingwater is known for its integration with the natural environment and use of local materials. Wright's genius in its siting allowed the house to be located over the waterfall, with open access to the water from the house and views of the water and nature beyond.