Kant's island. Promenade

The Brandenburg Gate (Russian: Бранденбургские ворота, tr.: Brandenburgskie vorota, German: Brandenburger Tor) is one of seven surviving city gates in Kaliningrad, the former German city of Königsberg. The gate is located on Bagration Street and is the only gate of Kaliningrad still in use for the intended purpose.

The Heart of the City is a long-term project aiming at the redevelopment of the historic centre of Kaliningrad, the area surrounding the former Königsberg Castle and the House of Soviets. The project implementation unit is a Non-governmental organization Urban Planning Bureau “Heart of the City” (Russian name: Градостроительное бюро «Сердце города»), located in Kaliningrad, Russia.

The Church of the Holy Family (Russian: Кирха Святого Семейства; German: Kirche zur Heiligen Familie) is a neogothic brick church in Kaliningrad. It was built in the Haberberg city district of Königsberg, near the Pregel river, between 1904 and 1907. The church was designed by architect Friedrich Heitmann and was built for the Catholic immigrants that were coming to Königsberg.

Altstadt was a quarter of central Königsberg, Germany. During the Middle Ages it was the most powerful of the three towns that composed the city of Königsberg, the others being Löbenicht and Kneiphof. Its territory is now part of Kaliningrad, Russia.

Altstadt Church (German: Altstädtische Kirche) was a medieval church in the Altstadt quarter of Königsberg, Germany. It was dismantled during the 1820s and replaced with New Altstadt Church.

Haberberg Church (German: Haberberger Kirche) or Holy Trinity Church (German: St. Trinitatis-Kirche) was a Protestant church in the Haberberg quarter of Königsberg, Germany. Its 18th-century Rococo interior was one of the most beautiful in East Prussia.

The Sackheim Gate (Russian: Закхаймские ворота, tr.: Zakkhaymskie vorota; German: Sackheimer Tor) is one of seven surviving city gates in Kaliningrad, Russia, formerly the German city of Königsberg. It is located at the intersection of Moscow avenue and Lithuanian wall street.

The Seven Bridges of Königsberg is a historically notable problem in mathematics. Its negative resolution by Leonhard Euler in 1736 laid the foundations of graph theory and prefigured the idea of topology.The city of Königsberg in Prussia (now Kaliningrad, Russia) was set on both sides of the Pregel River, and included two large islands - Kneiphof and Lomse - which were connected to each other, or to the two mainland portions of the city, by seven bridges.

Königsberg's New Synagogue (German: Neue Synagoge) was one of three synagogues in Königsberg in Prussia, East Prussia (now Kaliningrad, Russia). The other synagogues were Old Synagogue and Adass Jisroel synagogue. The New Synagogue was destroyed in the aftermath of the Kristallnacht pogrom in 1938. It was reconstructed and reopened in 2018.

The Königsberg Stock Exchange (German: Königsberger Börse) was a stock exchange in Königsberg, Germany. One of the few buildings from central Königsberg to survive World War II, it is now a cultural centre in Kaliningrad, Russia.The first stock exchange in Königsberg was documented in 1619. Four years later it was located in a new building of Kneiphof on the northern shore of the Alter Pregel; until 1798 it was accessible from the bridge Grüne Brücke.