Bangkok is the capital of Thailand and the largest city in the country. But it is typically only called Bangkok in English. In Thai, it is often called "Krung Thep Maka Nakhon", or just "Krung Thep".
Its full name is "Krung Thep Mahanakhon Amon Rattanakosin Mahinthara Ayuthaya Mahadilok Phop Noppharat Ratchathani Burirom Udomratchaniwet Mahasathan Amon Piman Awatan Sathit Sakkathattiya Visanukam Prasit."
What it means is “The city of angels, the great city, the residence of the Emerald Buddha, the impregnable city (unlike Ayutthaya) of God Indra, the grand capital of the world endowed with nine precious gems, the happy city, abounding in an enormous Royal Palace that resembles the heavenly abode where reigns the reincarnated god, a city given by Indra and built by Vishnukarn.”