Russian police found the antlers outside a small town near the Polish border.
Russia's Kaliningrad region has announced the castle is up for sale.
Some outlets have seen a huge spike in people leaving comments.
Kaliningrad received its current name by the Soviet Union, after serving as a German bastion in Eastern Europe for centuries.
Moscow says it is fed up with "groundless" U.S. accusations that it is obstructing U.S. observation jets, so it will now do exactly that.
Russia's Baltic fleet has put its newest rockets and artillery on display in the middle of Kaliningrad.
The Baltic Fleet has called on 70 ships from its main ports and 2,000 troops ahead of a military drill on land in nearby Belarus.
Russian helicopters blasted their targets not far from where the U.S. and NATO allies have just begun fortifying their air defenses.
Poland has long called for U.S. backing in deterring Moscow, and Russian missiles are set to arrive near its border.
A Russian jet tried to intimidate a NATO jet while attempting to escort the Russian defense minister's plane in international airspace, state news agencies claim.
The Baltic country claims Russian jets and vessels neared its borders 13 times last month.
American forces are currently deployed to the region for a series of exercises with NATO allies.
Russia's decision last year to deploy of the Iskander-M to a region bordering Poland and Lithuania prompted concern among both NATO allies.
Russian Baltic crews are already trained in using the new multirole fighter-bombers.
The upcoming mass drill is the largest such operation on Lithuania's borders, according to a lawmaker.
Moscow has been working on missiles to overwhelm defences.
The Kremlin confirmed Yevgeny Zynychev had left Kaliningrad for personal reasons.
Alexander Nosatov was deputy commander of the Black Sea Fleet during the Crimea annexation.
Sports Minister says Moscow is faced with "serious issues" over two stadiums.
The €3.4m high-tech towers will provide Polish authorities with instant updates on activity in the region.