International Pictures Moscow, Russia
Russian Kremlin Museum of the military development of The Great Patriotic War 1941-1945(Great domestic war)

The T-34 was a Soviet medium tank produced from 1941 to 1958. It is widely regarded as having been the world's best tanks when the Soviet Union entered World War II, and although its armour and armament were surpassed by later tanks of the era, it has been often credited as the war's most effective, efficient and influential design. First produced at the KhPZ factory in Kharkov (Kharkiv, Ukraine), it was the mainstay of Soviet armored forces throughout World War II, and widely exported afterwards. It was the most-produced tank of the war, and the second most-produced tank of all time, after its successor, the T-54/55 series. A 1996 publication showed that the T-34 was still in service with twenty-seven countries. The T-34 was developed from the BT series of fast tanks and was intended to replace both the BT-5 and BT-7 tanks and the T-26 infantry tank in service (Zaloga & Grandsen 1984:66, 111). At its introduction, it was the tank with the best balanced attributes of firepower, mobility and protection, although initially its battlefield effectiveness suffered from the unsatisfactory ergonomic layout of its crew compartment, lack of radios and poor tactical employment. The two-man turret crew arrangement required the commander to serve as the gunner, an arrangement common to most Soviet tanks of the day; this proved to be inferior to three-man (commander, gunner and loader) turret crews.

Katyusha multiple rocket launchers (Russian: Катюша) are a type of rocket artillery built and fielded by the Soviet Union beginning in the Second World War. Compared to other types of artillery, multiple rocket launchers are able to deliver a devastating amount of explosives to an area target more quickly but with lower accuracy and longer reloading time. Katyushas are relatively fragile but inexpensive and easy to produce. Katyushas of World War Two, the first self-propelled artillery mass-produced by the Soviet Union, were usually mounted on trucks. This mobility gives Katyushas (and other self-propelled artillery) another advantage: they are able to deliver a blow and then move before the other side is able to attack their position with counter-battery fire. Katyusha weapons of World War Two included the BM-13 launcher, light BM-8, and heavy BM-31. Today, the nickname is also applied to newer truck-mounted Soviet multiple rocket launchers—notably the very common BM-21—and their derivatives worldwide. Red Army troops adopted the nickname from Mikhail Isakovsky's popular wartime song, "Katyusha", about a girl longing for her absent beloved, who is away performing military service. Katyusha (Катюша) is the Russian equivalent of "Katie", an endearing diminutive form of the name Katherine: Yekaterina →Katya →Katyusha. German troops coined the sobriquet Stalin's organ (German: Stalinorgel), after Soviet leader Joseph Stalin and also alluding to the sound of the weapon's rockets.

The Tsar Bell (Russian: Царь–колокол, Tsar Kolokol, literally "Tsar of bells") is a huge bell on display on the grounds of the Moscow Kremlin. The bell was commissioned by Empress Anna, niece of Peter the Great. The bell is currently the largest bell in the world,[1] weighing 216 tons, with a height of 6.14 m and diameter of 6.6 m. It was founded from bronze by masters Ivan Motorin and his son Mikhail in 1733–1735. Ornaments, portraits, and inscriptions were made by V. Kobelev, P. Galkin, P. Kokhtev, P. Serebryakov and P. Lukovnikov. The bell was never rung — during a fire in 1737, a huge slab (11.5 tonnes) cracked off while it was still in the casting pit. After the fire, the bell remained in its casting for a century. In 1836, the Tsar bell was placed on a stone pedestal next to the Ivan the Great Bell Tower in the Moscow Kremlin. The slab is nearly three times larger than the world's largest bell hung for full circle ringing, the tenor bell at Liverpool Cathedral. There were, in fact, two earlier bells with the same name, cast in the early 17th century and in 1654 (approx. 130 tonnes). The latter shattered during the fire of 1701. Its remnants were used to create the Tsar bell. The present bell is sometimes referred to as Kolokol III (Bell III), because it is the third generation.

Tsar Pushka (Russian: Царь-пушка, literally "Tsar-cannon") is a huge cannon, commissioned in 1586 by Russian Tsar Feodor and cast by Andrey Chokhov. The cannon weighs nearly 38 metric tonnes and has a length of 5.34 meters (17.5 feet), a calibre of 890 mm (35 inches), and an external diameter of 1200 mm (41 inches). The Guinness Book of Records lists it as the largest howitzer ever made. The cannon has never been fired and it may have been intended as only a showpiece of military might and engineering. Along with a new carriage, the 2 ton cannonballs surrounding the cannon were added in 1835 and are larger than the diameter of its barrel; it was, in fact, designed to fire 800 kg stone grapeshot. According to legend, the cannonballs were manufactured in St Petersburg, and were intended to be a humorous addition and a symbol of the friendly rivalry between Moscow and St. Petersburg. The cannon is decorated with reliefs, including one depicting Tsar Feodor Ivanovich on a horse. The original wooden carriage was made in the early 19th century, but it was destroyed by fire in 1812. The cannon is within the walls of the Moscow Kremlin next to the Tsar bell, which is similarly massive and the largest bell in the world, but it has never been rung. The cannon was last restored in 1980.