the petronas towers were built in 1998
Until around 600AD Churches had no towers. From this time on Churches were built with towers, which gradually became more elaborate until they became steeples.
The Martello Towers were built in 1846... that is what i know :P
it was built in 1975
it was built in 1975
The twin towers were built in 1973.
the twin towers were built by very large machinery and they also took a while to build them
no not yet
the petronas towers were built in 1998
to honor the towers when they were there and to keep 9/11 in rememberance
Large towers are built to provide water to keep equipment cool.
two