Possible Clues:

• The capital of Thailand
• City Murray Head spent "One Night in"
• Financial institution holding good, adequate capital
• 'One Night in --', song from the musical 'Chess'
• Thailand capital
• City's financial institution agreed to accept grand
• Krung Thep is the Thai name of this Thai city
• The world's most-visited city (20+ million travelers annually)
• Capital called Krung Thep by natives