The form of the coastline around Durdle Door is controlled by its geology--both by the contrasting hardnesses of the rocks, and by the local patterns of faults and folds.The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. The rock strata are almost vertical, and the bands of rock are quite narrow. Originally a band of resistant Portland limestone ran along the shore, the same band that appears one mile along the coast forming the narrow entrance to Lulworth Cove. Behind this is a 120-metre (390 ft) band of weaker, easily eroded rocks, and behind this is a stronger and much thicker band of chalk, which forms the Purbeck Hills. These steeply dipping rocks are part of the geological structure known as the Lulworth crumple, itself part of a broader monocline (a kinked type of geological fold) produced by the building of the Alps during the mid-Cenozoic.

Nikon D800E, Samyang 14mm F2.8 IF ED MC Aspherical.

Photo Settings: 14mm, f/9, 1/200 second, ISO 125.

Map: 50.6225, -2.2725

This is a photo of the old district of Ny havn (new harbour) in Copenhagen. It's lined by 17th and early 18th century colourful townhouses and bars, cafes and restaurants.

Nikon D7100, Tokina AT-X Pro 11-16mm f/2.8 DX.

Photo Settings: 16mm, f/10, 15 seconds, ISO 100.

Lake Ohau is a glacial lake in the Mackenzie Basin of New Zealand's South Island. When I arrived at the lake, the last beams of sunlight shed across the mountain range and I had only minutes to take these photos. The strong winds in this area didn't really help. Would you like to see other New Zealand photos?

Adobe Photoshop CS, Lightroom CS and waterproof shoes.

Nikon D800, Nikon AF-S NIKKOR 14-24mm f/2.8G ED.

Map: -44.2500, 169.8500

A soft pink hue kisses goodnight to the Golden Gate bridge in San Francisco, California.

@DestinSparks

Phase One A/S IQ3 100MP.

Photo Settings: 80mm, f/16, 5 seconds, ISO 50.

I took a trip down south to Monterey to go whale watching, after that I decided to take a little trip up California State Road 1. This is Big Sur California.

Adobe Lightroom Adobe Photoshop CC.

Nikon D600, Nikon AF-S Nikkor 50mm f/1.8G.

Taken from Gornergrad, a rocky ridge of the Pennine Alps, overlooking the Gorner Glacier south-east of Zermatt in Switzerland.

I was like standing there and then like woah, all of a sudden there was this cloud reaching out and then it was like lit from below and I was like SNAP boom into my camera.

Moon for lighting, Photoshop, Manfrotto tripod, gloves.

Nikon D800, Nikon AF-S NIKKOR 14-24mm f/2.8G ED.

Photo Settings: 19mm, f/2, 25 seconds, ISO 100.

Map: 45.9833, 7.7847

Mount Hutton, New Zealand.

I was fortunate enough to capture this amazing light whilst leading our most recent Photo Tour in New Zealand. The majestic Mount Hutton is reflected in this secret lake within the Canterbury region of the South Island

Camera: Phase One IQ3 100MP XF

Lens: Schneider Kreuznach 80mm LS f/2.8

RRS Tripod, Singh Ray 4 Stop ND Grad, Singh Ray Polariser

No matter how dark the night, the bigger the campfire, the more darkness is revealed!

Taken with a Nikon D850 and a Sigma 14mm @ f/1.8 (ISO 400) & 15 seconds exposure. Three individual shots were stitched together in Lightroom CC Classic and then processed in Photoshop CC. Color correction with NIK Color Efex. Finding right spot & preparation took 6h plus editing another 3h. Enjoy and let me know whether you'd like to know more.

Adobe Photoshop and Adobe Lightroom CC.

Photo Settings: 14mm, f/1, 15 seconds, ISO 400.

Map: 47.0256, 8.9806

This is the peak of Mount Cook, New Zealand. I captured this beautiful view during a recent flight around the Aoraki area with its wonderful mountains, glaciers and valleys.

For me - and I guess for most of other people, too - reaching the top of one of these mountains is a lifelong but yet unreachable dream.

Canon EOS 5DS R.

Carl Zeiss Milvus 2.8/18mm

Capture One Pro 11

Photo Settings: 18mm, f/5, 1/320 second, ISO 100.

Riomaggiore (Rimazùu in the local Ligurian language) is a village situated in a small valley in the Liguria region of Italy.

Adobe Photoshop.

Nikon D3200, Tokina AT-X Pro 11-16mm f/2.8 DX.

Photo Settings: 13mm, f/11, 20 seconds, ISO 100.