It’s called Sentinel Tower and will be the tallest building in the El Paso-Juarez ... for monitoring criminal activity in a Mexican border city where three drug cartels and several major gangs ...

This makes Trump’s wall the tallest and most expensive ... highest estimates for the total cost of building barriers along applicable sections of the border reach as high as $70 billion.

The tallest buildings in 14 boroughs have changed since ... The Norman-Foster-designed Principal Tower sits just within the Hackney border, overlooking the City of London. It climbs 161 metres ...