At home with Christian and Karen Boros in Berlin: their extraordinary apartment sits atop a historic WWII bunker that has lived many lives - from air-raid shelter, to communist-era fruit storage, to the original site of the legendary Berghain nightclub. Purchased by the Boroses in 2003, the bunker now houses their renowned contemporary art collection, open to the public by guided tour. A hidden elevator and sliding door - reminiscent of a 1960s Bond film - lead to their remarkable open-plan residence, famously featured in Todd Field’s TÁR. Text and images by @collectorwalls