Thimphu, the capital of the Himalayan Kingdom of Bhutan, is the only national capital in the world that does not use a single traffic light. For a brief period, one traffic light was installed at a major intersection, but it was quickly removed after residents complained it was too impersonal and confusing. Instead, traffic is managed by a policeman standing in a brightly decorated ornate booth, using graceful hand signals to direct cars. Thimphu is situated at an altitude of approximately 2,334 meters (7,657 feet) and is known for strictly enforcing traditional Bhutanese architecture for all new buildings. The city is the heart of the country's unique 'Gross National Happiness' philosophy. Major sites include the Tashichho Dzong, a fortress-monastery that houses the government's seat, and the Buddha Dordenma, one of the largest statues of Buddha in the world, which overlooks the valley from the surrounding mountains.