Hunan received 372 million Red tourists from 2004 to 2014, generating 168 billion yuan ($27.1 billion), says Wang from Hunan tourism bureau.

The Jinggangshan scenic spot in Jiangxi province, a famous site in China's revolution history, received 2.94 million inbound tourists alone last year, up 34.35 percent over the previous year. Tourism income increased 35 percent to $60.67 million.

There have been 4 billion Red-tourism visits in China made by domestic and inbound travelers over the past decade.

The international market has also rolled out Red tourism packages to woo Chinese tourists.

Russia will build leisure zones around Soviet-themed museum clusters and launch a tour route that covers Ulyanovsk, Moscow and St. Petersburg, Luo says.

Germany will develop trips that highlight places visited by China's first premier, Zhou Enlai.

China's tourism administration has made the promotion of China's Red tourism a priority, says the administration's international department's inspector Li Yaying.

China will arrange for its Red tourism departments and travel agencies to attend international exchanges, including expos, while inviting international travel wholesale agencies to explore revolutionary sites in the China.