Thank you to all the photographers that shared their best shots of simple architecture in this photo contest with chances to win a 100mm Filter Holder, a circular polarizer and more!

A special thanks to friend and professional photographer Donal Boyd for his collaboration as a guest judge in this photo contest. Donal Boyd is an American-Irish photographer based in the Southern Highland mountains of Iceland whose work mainly focuses on wildlife and nature conservation worldwide. His imagery and captions probe the viewer/reader to think deeply about the status of our planet and to consider the connections we all share. His goal is to bring awareness to fragile ecosystems around the globe with the hope of promoting the protection of nature.

"golden hour in Antwerp " by koenceusters

golden hour in Antwerp by koenceusters - Simple Architecture Photo Contest

"Reitdiephaven " by philipslotte

Reitdiephaven by philipslotte - Simple Architecture Photo Contest

"All you need is light " by sergioabellovillanueva

All you need is light by sergioabellovillanueva - Simple Architecture Photo Contest

"To Infinity " by ts446photo

To Infinity by ts446photo - Simple Architecture Photo Contest

"La-torre-oscura " by MONSUGAR

La-torre-oscura by MONSUGAR - Simple Architecture Photo Contest

"Station " by Ivan_Bertusi

Station by Ivan_Bertusi - Simple Architecture Photo Contest

"_MG_9687 " by Dolcefoto

Sevilla (Spain) by Dolcefoto - Simple Architecture Photo Contest

"Rainbow Houses " by albertdros

Rainbow Houses by albertdros - Simple Architecture Photo Contest

"Brought to you by the letter A " by ashleysowter

Brought to you by the letter A by ashleysowter - Simple Architecture Photo Contest

"Axel Towers " by olesteffensen

Axel Towers by olesteffensen - Simple Architecture Photo Contest

"Skyward " by NickBPhotoUK

Skyward by NickBPhotoUK - Simple Architecture Photo Contest

"BodieChurchNG " by DuffyDoherty

BodieChurchNG by DuffyDoherty - Simple Architecture Photo Contest

"Waiting " by rhmimages

Waiting by rhmimages - Simple Architecture Photo Contest

"Tempest, Montreal " by beyond_the_prism

Tempest, Montreal by beyond_the_prism - Simple Architecture Photo Contest

"Vespera Steam Plant RAW-43 " by KEnagonio

Abandoned Nuclear Plant  by KEnagonio - Simple Architecture Photo Contest

"Standing Tall " by emmafleetwood

Standing Tall by emmafleetwood - Simple Architecture Photo Contest

"The bridge " by ingomenhard

The bridge by ingomenhard - Simple Architecture Photo Contest

"Spiral stairs " by zenit

Spiral stairs by zenit - Simple Architecture Photo Contest

"The Black Church " by andreacelli

The Black Church by andreacelli - Simple Architecture Photo Contest

"Sky Pointers " by weshardaker

Sky Pointers by weshardaker - Simple Architecture Photo Contest

"old-mill " by JBramerPhotography

old-mill by JBramerPhotography - Simple Architecture Photo Contest

"Home Sweet Home-1 " by SURREALIMAGE

Home Sweet Home-1 by SURREALIMAGE - Simple Architecture Photo Contest

"IMG_20180912_125618_600 " by TonoDr

IMG_20180912_125618_600 by TonoDr - Simple Architecture Photo Contest

"Chapel to the cadets* " by Bob5253

Chapel to the cadets* by Bob5253 - Simple Architecture Photo Contest

"IMG_9840 " by ronaldwebb

IMG_9840 by ronaldwebb - Simple Architecture Photo Contest

"Sharing habitat " by Baun

Sharing habitat by Baun - Simple Architecture Photo Contest

"Lipstip tower " by nev1961

Lipstip tower by nev1961 - Simple Architecture Photo Contest

"Orwellian " by Jellyfire

Orwellian by Jellyfire - Simple Architecture Photo Contest

"Looking up in Hong Kong " by (A)MeganShadow

Looking up in Hong Kong by MeganShadow - Simple Architecture Photo Contest

"Smart City " by briancassar

Smart City by briancassar - Simple Architecture Photo Contest

"Up " by billytaylorphotography

Up by billytaylorphotography - Simple Architecture Photo Contest

"The Journey " by Paul-Stapleton

The Journey by Paul-Stapleton - Simple Architecture Photo Contest

"Hex " by FazakasPhotography

Hex by FazakasPhotography - Simple Architecture Photo Contest

"London Bridge B&W Fine Art " by farigiovanni

London Bridge B&W Fine Art by farigiovanni - Simple Architecture Photo Contest

"Through Tower Bridge " by RalfvonSamson

Through Tower Bridge by RalfvonSamson - Simple Architecture Photo Contest

"DC Tower, Vienna " by mathewbrowne

DC Tower, Vienna by mathewbrowne - Simple Architecture Photo Contest

"stairs mono-HDR " by Johnsalterego

stairs mono-HDR by Johnsalterego - Simple Architecture Photo Contest

"Douglas Hollow Schoolhouse, Oregon " by DreamCapturedImages

Douglas Hollow Schoolhouse, Oregon by DreamCapturedImages - Simple Architecture Photo Contest

"20180618-G-FR300-0027 " by andywinz

20180618-G-FR300-0027 by andywinz - Simple Architecture Photo Contest

"De Rotterdam " by kimpaffen

De Rotterdam by kimpaffen - Simple Architecture Photo Contest

"_GMS9877 " by intheloupe

_GMS9877 by intheloupe - Simple Architecture Photo Contest

"Apple building " by Diwagner

Apple building by Diwagner - Simple Architecture Photo Contest

"Taken in Bamburg Castle in Northeast England. " by R_Tom_Sizemore_III

Taken in Bamburg Castle in Northeast England. by R_Tom_Sizemore_III - Simple Architecture Photo Contest

"Souls to Heaven " by michaelbeatley

Souls to Heaven by michaelbeatley - Simple Architecture Photo Contest

"The room " by ilyayakover

The room by ilyayakover - Simple Architecture Photo Contest

"NORD/LB Head Office, Hannover, Germany " by greenograph

NORD/LB Head Office, Hannover, Germany by greenograph - Simple Architecture Photo Contest

"Broken " by Chickey

Broken by Chickey - Simple Architecture Photo Contest

"Afternoon Light, at the coffee shop " by Beno62

Afternoon Light, at the coffee shop by Beno62 - Simple Architecture Photo Contest

"Flaubert bridge " by pascalpbz

Flaubert bridge by pascalpbz - Simple Architecture Photo Contest

"LongExposure " by inagat

LongExposure by inagat - Simple Architecture Photo Contest

"Colours in the City " by rossdixon

Colours in the City by rossdixon - Simple Architecture Photo Contest

"Church " by Christian-Read

Church by Christian-Read - Simple Architecture Photo Contest

"The two children at the door " by BOULENGER

The two children at the door by BOULENGER - Simple Architecture Photo Contest

"Catholic Library (Triangles #3) " by chmeermann

Catholic Library (Triangles #3) by chmeermann - Simple Architecture Photo Contest

"Enlightenend " by catini

Enlightenend by catini - Simple Architecture Photo Contest

"Cabin Susnet in the Appalachian Mountains " by MWPhotography2

Cabin Susnet in the Appalachian Mountains by MWPhotography2 - Simple Architecture Photo Contest

"Winter Coastal Picture " by robwill236

Winter Coastal Picture by robwill236 - Simple Architecture Photo Contest

"Cape Bonavista Sunset " by tracymunson

Cape Bonavista Sunset by tracymunson - Simple Architecture Photo Contest

"Valencia Concert Hall " by pnewbery

Valencia Concert Hall by pnewbery - Simple Architecture Photo Contest

"BODIE_15_IR_HDR5_Lottie Johl House_Sep_tc_spe " by dynastesgranti

BODIE_15_IR_HDR5_Lottie Johl House_Sep_tc_spe by dynastesgranti - Simple Architecture Photo Contest

"New York City " by jacphotographic

New York City by jacphotographic - Simple Architecture Photo Contest

"Evening at the Farm " by alishaclarke

Evening at the Farm by alishaclarke - Simple Architecture Photo Contest

"composing with colors..) " by dmitrysamsonov

composing with colors..) by dmitrysamsonov - Simple Architecture Photo Contest

"Stonehenge WA " by TheTravellingPhotographer

Stonehenge WA  by TheTravellingPhotographer - Simple Architecture Photo Contest

"#0062 Matagarup Bridge crop ll " by Rmonty119

#0062 Matagarup Bridge crop ll by Rmonty119 - Simple Architecture Photo Contest

"Perspective v2 " by N1ckBaker

Perspective v2 by N1ckBaker - Simple Architecture Photo Contest

"Red Barn " by beamieyoung

Red Barn by beamieyoung - Simple Architecture Photo Contest

"Yellow Window " by mccabet