Question: What kinds of building in Niagara Falls were opened by the Seneca Indian Tribe?
About the article "Niagara Falls", section "American side".

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From the U.S. side, the American Falls can be viewed from walkways along Prospect Point Park, which also features the Prospect Point Park observation tower and a boat dock for the "Maid of the Mist".
Goat Island offers more views of the falls and is accessible by foot and automobile traffic by bridge above the American Falls.
From Goat Island, the Cave of the Winds is accessible by elevator and leads hikers to a point beneath Bridal Veil Falls.
Also on Goat Island are the Three Sisters Islands, the Power Portal where a huge statue of Nikola Tesla (the inventor whose patents for the AC induction motor and other devices for AC power transmission helped make the harnessing of the falls possible) can be seen, and a walking path that enables views of the rapids, the Niagara River, the gorge, and all of the falls.
Most of these attractions lie within the Niagara Falls State Park.
The Niagara Scenic Trolley offers guided trips along the American Falls and around Goat Island.
Panoramic and aerial views of the falls can also be viewed from the Flight of Angels helium balloon ride, or by helicopter.
The Niagara Gorge Discovery Center showcases the natural and local history of Niagara Falls and the Niagara Gorge.
A casino and luxury hotel was opened in Niagara Falls, New York, by the Seneca Indian tribe.
The Seneca Niagara Casino occupies the former Niagara Falls Convention Center.
The new hotel is the first addition to the city's skyline since completion of the United Office Building in the twenties.
Pataki has been a long advocate of Native American casinos in upstate New York.
He has proposed the creation of several casinos throughout Upstate with the revenue being shared by the state, tribe and municipal government.
In the 1990s he was able to secure the creation of one casino on an Indian reservation outside Syracuse.
His plans to create new casinos were blocked by Assembly Speaker Sheldon Silver until after the Sept. 11 attacks, when Silver was persuaded that more money could come into the state government.
Pataki soon signed an agreement to create new casinos in the Catskills, Niagara Falls, and in Buffalo.
The Seneca Niagara Casino opened in Niagara Falls in January 2003. 
Niagara Falls International Airport is four miles east of downtown Niagara Falls, in Niagara County, New York.
Owned and operated by the Niagara Frontier Transportation Authority, the airport shares its runways with the Niagara Falls Air Reserve Station.
A new terminal building opened in 2009. 
Many Iroquois have been fully integrated into the surrounding Western economy of the United States and Canada.
For others their economic involvement is more isolated in the reservation.
Whether directly involved in the outside economy or not, most of the Iroquois economy is now greatly influenced by national and world economies.
The Iroquois have been involved in the steel construction industry for over a hundred years, with many men from the Mohawk nations working on such high-steel projects as the Empire State Building and the World Trade Center.
Inside the reservations, which are sometimes isolated from larger cities, the economic situation has often been bleak.
For instance, the U.S. side of the Mohawk St. Regis reservation in northern New York has recently had unemployment as high as 46 percent.
But many reservations have successful businesses.
The Seneca reservation contains the City of Salamanca, New York, a center of the hardwoods industry.
The Seneca make use of their sovereignty to sell gasoline and cigarettes tax-free and run high-stakes bingo operations.
The Senecas have also opened several Indian casinos, the Seneca Niagara Casino in Niagara Falls, New York and one in Salamanca.
In 2007 the Seneca opened a third in Buffalo, the Seneca Buffalo Creek Casino.
The Oneida also operate casinos on their reservations in New York and Wisconsin.
The Oneida are one of the largest employers in northeastern Wisconsin with over 3,000 employees, including 975 people in tribal government.
The Tribe manages more than $16 million in federal and private grant monies, and a wide range of programs, including those authorized by the Indian Self-Determination and Education Assistance Act.
The Oneida business ventures have brought millions of dollars into the community and improved the standard of living. 
While it is not known exactly how many Seneca there are, approximately ten thousand Seneca live near Lake Erie.
About 7,800 people are citizens of the Seneca Nation of Indians.
These enrolled members live or work on five reservations in New York: the Allegany (which contains the city of Salamanca); the Cattaraugus near Gowanda, New York; the Buffalo Creek Territory located in downtown Buffalo, NY; the Niagara Falls Territory located in Niagara Falls, New York; and the Oil Springs Reservation, near Cuba, New York.
Few Seneca reside at the Oil Springs, Buffalo Creek, or Niagara Territories due to the small amount of land at each.
The last two territories are held and used specifically for gaming casinos.
Another 1,200 or more people are citizens of the Tonawanda Band of Seneca Indians and live on the Tonawanda Reservation near Akron, New York.
Other Seneca are members of the Seneca-Cayuga Tribe of Oklahoma who live near Miami, Oklahoma.
Some 10,000 to 25,000 Seneca are citizens of Six Nations and reside on the Grand River Territory near Brantford, Ontario, Canada.
They are descendants of Seneca who migrated to Canada after the American Revolution, where they were given land as allies of the British government.
Other enrolled members of the Seneca Nation live throughout the United States.