Tower Cancer Research Foundation was created in 1996.
The tower of London is built on a foundation of stone, which has supported it since it was built.
Chautauqua Tower was created in 1891.
Concord Tower was created in 2007.
Americas Tower was created in 1992.
Tower Hill Water Tower was created in 1854.
The ground under the tower shifted, and could not support its weight. The foundation was insufficient. (It is a bell tower, not a water tower.)
CANCER
Soldiers' Tower was created in 1924.
The Ebony Tower was created in 1980.
Sutro Tower was created in 1973.
Ladd Tower was created in 2009.
Fiberglas Tower was created in 1970.