Нікольське-Гагаріно, Noble estate in Nikolskoe, Russia

Nikolskoe-Gagarino is a noble estate in the Moscow region with grand buildings and ornately designed facades. The property comprises several structures that together form residential areas, outbuildings, and open grounds around the main residence.

Prince Sergei Sergeevich Gagarin bought the village of Nikolskoye from his brother-in-law in the early 1770s; the country house was built by 1776 to a design by Ivan Starov. The Gagarin family owned the estate until 1917. After nationalisation in 1918 it was looted, and in 1922 furniture, mirrors and a library of about 1,500 volumes were moved to the New Jerusalem Monastery.

The estate displays classical design elements that were common in Russian aristocratic architecture, visible in the rooms and their arrangement. The layout and decoration of the spaces reflect how noble families lived and organized their daily surroundings.

The estate is now a children's psychiatric hospital, so entry to outsiders is restricted and passes through a checkpoint. The park, by contrast, can be walked freely, and in winter visitors can sledge down the slope mentioned in Bolotov's autobiography. The church of St Nicholas, closed in 1938, reopened for services in 1999.

The 40-metre bell tower, likened to an ancient lighthouse, was blown up during the Second World War as a possible enemy observation post and rebuilt with parish funds in the first decade of the 21st century. The church itself reopened in 1999.