This is a place that I've always wanted to visit:

Some info:

"When Wright came to the site he appreciated the powerful sound of the falls, the vitality of the young forest, the dramatic rock ledges and boulders; these were elements to be interwoven with the serenely soaring spaces of his structure. But Wright's insight penetrated more deeply. He understood that people were creatures of nature, hence an architecture which conformed to nature would conform to what was basic in people. For example, although all of Fallingwater is opened by broad bands of windows, people inside are sheltered as in a deep cave, secure in the sense of hill behind them. Their attention is directed toward the outside by low ceilings; no lordly hall sets the tone but, instead, the luminous textures of the woodland, rhythmically enframed. The materials of the structure blend with the colorings of rocks and trees, while occasional accents are provided by bright furnishings, like wildflowers or birds outside. The paths within the house, stairs and passages, meander without formality or urgency, and the house hardly has a main entrance; there are many ways in and out. Sociability and privacy are both available, as are the comforts of home and the adventures of the seasons. So people are cosseted in to relaxing, into exploring the enjoyment of a life refreshed in nature. Visitors, too, in due measure experience Wright's architecture as an expansion of living" ( Source )

"Fallingwater, also known as the Edgar J. Kaufmann Sr. Residence, is a house designed by American architect Frank Lloyd Wright in 1935 in rural southwestern Pennsylvania, 50 miles southeast of Pittsburgh, and is part of the Pittsburgh Metro Area. The house was built partly over a waterfall in Bear Run at Rural Route 1 in the Mill Run section of Stewart Township, Fayette County, Pennsylvania, in the Laurel Highlands of the Allegheny Mountains." ( Source)

Location: Mill Run, PA
Nearest city: Pittsburgh
Built/Founded: 1935
Architect: Frank Lloyd Wright
Added to NRHP: 1974
Visitation: ~135,000 (in )
Governing body: Western Pennsylvania Conservancy

A fantastic film about it: