Japan is an island country in the Pacific Ocean. It has dense cities, imperial palaces, mountainous national parks, and thousands of temples and shrines. Shinkansen bullet trains connect the main islands of Kyushu (with the subtropical beaches of Okinawa), Honsh (home to Tokyo and the Hiroshima Atomic Bombing Memorial), and Hokkaido (popular for skiing). Tokyo, the capital, is well-known for its skyscrapers, shops, and popular culture.