21. Kaliningrad, Russia
Kaliningrad, Russia is a site tourists should avoid traveling to in 2023. It is a dangerous city due to its ongoing violent crimes and disputes. The city comes under the world’s most dangerous cities list.
Kaliningrad is the largest city in Russia. The city has been a site accessible to tourists for around 20 years. In addition, some areas of this city are used for military purposes, so visiting Kaliningrad is not a safe city for foreigners.