Explore nuclear bunkers around the world.

1. Nuclear bomb shelters in Japan

Seiichiro Nishimoto, CEO of Shelter, wears a gas mask in a simulated nuclear bunker built in the basement of his home in Osaka, western Japan.

The Japanese are already world-renowned for their incredibly unique and practical inventions. With the increasing dangers threatening daily life, Kenji Oribe, a resident of Suma, designed and built a model of a "nuclear shelter" right beneath his house.

Accordingly, he researched and constructed this "nuclear shelter" in six months. The ceiling and walls of the bunker are made of reinforced concrete 19 inches thick. This allows the bunker to withstand bombs of the same class as "Little Boy," the bomb that Hiroshima suffered in 1945, killing 129,000 people.

2. A nuclear bunker in Russia with a capacity of 2,700 people.

A staff member is demonstrating how to put on radiation protective gear. The shelter includes equipment such as a diesel generator, a water pump, radiation and chemical protective gear, and wooden beds for sleeping...

In addition to underground facilities for high-ranking officials, Russia is also believed to have built large-capacity nuclear bunkers for wartime protection. Nuclear bunker No. 1 in Moscow is a prime example. This underground bunker could shelter 2,700 people in the event of a nuclear attack.

Russia's nuclear bunker, located nearly 200 meters underground with steel walls over 0.6 meters thick, is considered "impenetrable" in the event of a nuclear war. Those who descend into the bunker receive three meals a day and three liters of water. The bunker also has air conditioning, 75 toilets, and a large shower room spacious enough for 200 people to shower simultaneously.

In addition to underground bunkers, many public buildings in Russia have also been tasked with providing shelter for citizens in the event of a nuclear war. In October 2016, the management of the Zenit Arena, a large stadium built in St. Petersburg, Russia, in preparation for the 2018 World Cup, received a request from the Russian Ministry of Emergency Situations to quickly prepare safe shelters for citizens in the event of a nuclear war.

3. China's top-secret nuclear bunker.

The corridor was long and dark, completely devoid of light.

The nuclear bunker is located 2km deep beneath Xishan National Forest Park, 20km northwest of Beijing. It serves as a safe evacuation site for high-ranking Chinese leaders in the event of a nuclear war.

A nuclear bunker is a system of underground tunnels and caves the size of a small city, providing a stable supply of clean water for 1 million people in the event of an emergency evacuation due to nuclear war.

The main entrance to the facility is located not far from the capital Beijing, allowing Chinese leaders to quickly travel from Zhongnanhai to the safe haven. The government will be able to maintain operations from inside the bunker.

Compared to other renowned nuclear bunkers such as the Raven Rock Mountain Complex in Pennsylvania or Cheyenne Mountain in Colorado, the bunker at Xishan Park has a significant advantage stemming from its unique location, quickly ensuring the safety of top Chinese officials.

4. The US nuclear war bunker

The equipment in this basement, nearly half a decade old, appears to be still intact. Photo: Mirror

Built in 1967, this bomb shelter is capable of withstanding a nuclear war. It was constructed to house five people. Although isolated from the outside world, they maintained communication lines in case of a nuclear conflict.

The front walls of the bunker were 1 meter thick, the roof was over 0.5 meters thick, and the concrete floor was over 0.6 meters thick. Industrial springs were also constructed around the bunker to help withstand the shock waves from the explosion.

The bunker has a 200 kW generator, massive air intake tunnels, and a custom ventilation system with radiation filters for use in the event of a nuclear disaster. The primary purpose of the bomb shelter is to protect against shock waves and hyperbaric pressure. The bunker can also avoid radioactive fallout for a certain period of time.

5. Nuclear shelters in England

The nuclear bunker in England is "hidden" in a building on a quiet street in the suburbs of York.

This underground structure was built by the British government in 1961 to prepare for a "doomsday" scenario in the event of a nuclear attack during the Cold War.

Reportedly, 60 members of the Royal Armed Forces, along with a team of top scientific advisors, were responsible for its operation.This is a nuclear shelter.

The bunker's doors are blast-proof. There are about 20 beds in the two dormitories of the secret shelter. This area serves as the "brain" of the bunker in the event of a (nuclear) attack.

This bunker was closed in 1991 when the Cold War ended. It was later reopened to the public in 2006.

The Pyongyang subway system is approximately 24km long with 17 stations and 2 tracks. (Image: Sputnik)

In the event of a nuclear attack, the Pyongyang subway, the world's deepest subway station, could serve as a safe haven for the North Korean people.

North Korea possesses a subway system located more than 100 meters underground. This is also one of the deepest subway stations in the world today. Construction of this station began in 1968 and was inaugurated in 1973 during the time of North Korean leader Kim Il-sung.

The train station has an average depth of 100m, but some sections reach depths of up to 150m. At such depths, the average temperature consistently remains around 18°C ​​year-round. Besides its role as a public transportation hub, this train station, located more than 100m deep, could also serve as a safe haven should the current tensions between the US and North Korea escalate into a full-scale war.

7. Swiss nuclear bunkers

The nuclear bomb shelter is located inside an apartment building in Switzerland, with a door that is 20cm thick.

Switzerland is the only country in the world with a system of nuclear-proof bunkers provided to its entire population, even though they may never need to use them.

These bunker systems are equipped with steel doors up to 20cm thick and a ventilation system capable of filtering out gas fumes; they serve as temporary homes for people in emergencies, whether conventional or nuclear war.

Every apartment in Switzerland, whether for rent or sale, comes with such a basement. In peacetime, these basements are used by residents as small storage spaces.

According to Swissinfo statistics, Swiss people spend more than anyone else in the world (over 20% of their income) on ensuring their safety and protection against external threats. And this has been codified into law.