The Willis Tower in Chicago: the building last changed hands in 2004 when MetLife sold it  for $840 million. Photograph: Scott Olson/Getty Images

Blackstone, the world’s biggest real estate investor, is set to buy one of the world’s best known buildings, Chicago’s Willis Tower, for $1.5 billion (...)

The final piece of the One World Trade Center spire is attached to the building by ironworkers in New York. Photograph: Gary He/INSIDER IMAGES/Handout via Reuters

Workers cheered today as the silver spire topping One World Trade Center in New York was fully installed on the building’s roof today bringing(...)

The woman behind the counter in Walgreens drug store on Michigan Avenue remarks on my accent and tells me she has been to Ireland twice, both t(...)