Some of the tours across Wales require advance booking, and range from ghost walks around Cardiff to a look around Dolaucothi Gold Mines in Carmarthenshire.

BBC: Weekend 'open doors' at historic sites across Wales

And we seek to cooperate to advance our mutual interests in a range of pressing global and regional security challenges.

WHITEHOUSE: U.S.-China Strategic and Economic Dialogue

Japan and the United States pledge to fulfill our roles and responsibilities by utilizing the full range of capabilities to advance regional and global peace, prosperity and security.

WHITEHOUSE: The White House