A look inside the lavish Mission of Yugoslavia on Fifth Avenue

A storied $50 million Gilded Age mansion on the Upper East Side now has an official listing and some very, very opulent accompanying photos.

Designed by the same architects responsible for Grand Central Station, the house is being offered for the first time in over 70 years, and comes complete with all furnishings and decoration.

The lavish spread was bought by the former Republic of Yugoslavia in 1946 for $300,000 and for decades it was home to the nation’s UN Mission. It reportedly still features a top-floor Faraday Cage — a metal-padded room — that officials used to make calls without being wiretapped, and bullet-proof windows. It also served as a hideout for Josip Broz Tito, and now houses the offices of Serbia’s Permanent Mission to the United Nations.

Last week, Yugoslavia’s successor states — Bosnia, Serbia, Croatia, Slovenia and Macedonia —  finally worked out an agreement to sell the mansion.

The property has supposedly already attracted six offers.