Ireland, County Sligo, Carney, Close up detail of the interior of a red cabbage.

Namibia, Namib Desert, Welwitschia Mirabilis plant that can grow to 100 years old.

Namibia, Namib Desert, Welwitschia Mirabilis plant that can grow to 100 years old.

Guatemala, Rainforest trees grow on an unrestored ruin in Group H in the the ruins of the Mayan city of Tikal in Tikal National Park, a UNESCO World Heritage Site.

Myanmar, Mandalay, Ornamental cabbages, National Kandawgyi Gardens, Pyin Oo Lwin, Maymyo.

Poland, Warsaw, Marszalkowska, Wire frame on building facade to allow plants to grow vertically.

Poland, Warsaw, Marszalkowska, Wire frame on building facade to allow plants to grow vertically.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

The Ferro at the bow of a gondola passing under a footbridge over a canal

Campo Volantin footbridge over the River Nevion near the Guggenheim with high rise apartment buildings behind reflected in water below.

Windmill seen from across a narrow footbridge over water  Netherlands

The new Millennium Footbridge illuminated at night.

Sculpture of fish next to Lagan Weir footbridge. Designs use Lasertran photocopies of old newspaper clippings.

Sculpture of fish next to Lagan Weir footbridge. Designs use Lasertran photocopies of old newspaper clippings.

View along the underside of the Millennium footbridge over the River Thames

Section of the underside of the Millennium footbridge with pedestrians looking over the side

Section of the Millennium footbridge with passing tour boat

Women climbing stone footbridge.

The new Millennium Footbridge illuminated at dusk with city buildings silhouetted against purple evening sky behind.

Bilbao. The Zubuzuri footbridge.