Freelance writer and photographer Inga Ting writes: With it’s labyrinthine streets, hidden plazas and winding subterranean tunnels, the city of Guanajuato in central Mexico may well be one of the most picturesque cities in the world. Declared a UNESCO World Heritage Site in 1998, this charming colonial city owes much of its charm to its unique location, nestled in the narrow valleys of the Sierra de Guanajuato. Candy-coloured houses cascade down sun-soaked mountains, whose rich silver veins once supplied up to two-thirds of the world’s silver. Beneath the city, a maze of tunnels built to divert floodwaters from the Guanajuato River now serve as throughfares in one of the world’s only road systems built almost completely underground

Sunset in the valleys of the Sierra de Guanajuato

Hundreds gather in Plaza de la Paz to celebrate Semana Santa or Holy Week.

Locals mark the beginning of Semana Santa or Holy Week in the lead up to Christmas with a candlelit parade

A series of murals in the Alhóndiga de Granaditas, the site of the first armed battle in the Mexican War of Independence, bring to life the nation’s revolutionary history.

Night falls on the city of Guanajuato, nestled in the valleys of the Sierra de Guanjuato in central Mexico.

Local flower vendors prepare for the day

A greengrocer peels onions in the lane ourside his shop.

A tailor works late into the night