Budapest's iconic Chain Bridge links both sides of the city - beautiful Buda with vibrant Pest - across the river Danube. At night, the lights that illuminate the bridge shimmer like mini moons in the waters below. Normally, it's a favourite spot for tourist selfies - but not this Sunday. Following a historic election result that unceremoniously booted Prime Minister Viktor Orbán out after 16 years in government, the bridge was lit up in red, white and green - the colours of the Hungarian flag.