Bread for sale at the Mercat de Sant Josep de la Boqueria, Barcelona's most famous market, Barcelona, Catalonia, Spain, Europe

Fresh bread for sale at Marche Aux Fleurs (flower market), Cours Saleya, Nice, UNESCO, Alpes Maritimes, French Riviera, Provence, France

Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad

Assorted bread from the Danish bakery Emmerys, Aarhus, Jutland Peninsula, Denmark, Europe

Bread for sale on popular Thursday market day in this south western historic bastide town, Eymet, Bergerac, Dordogne, France, Europe

French fresh croissants and artisan baguette tradition

White rhinoceros (Ceratotherium simum), grazing, covered with mud, portrait, Solio Ranch Wildlife Sanctuary, Kenya, Africa

Olive tapenade on crusty homemade bread. Port Grimaud, Provence, France.

Black Rock Desert in Nevada. Arid cracked crusty surface of the salt flat playa. Wheatgrass plants with a dense network of roots in shallow soil with bright fresh green leaves and stalks.

Black Rock Desert in Nevada. Arid cracked crusty surface of the salt flat playa. Wheatgrass plants with a dense network of roots in shallow soil with bright fresh green leaves and stalks.