GeoStats:

Passport/Visa Requirements: US citizens need only a passport for stays up to 90 days

Official Name: Great Britain, United Kingdom

London Population: 8,505,000

Language: English

Predominant Religions: Christian, although all major religions are represented

Time Zone: Greenwich Mean Time (GMT)

Voltage Requirements: 240 volts

Phone Codes: 44, country code; 020, city code for London