The double-helix structure of a DNA strand inspired the design of the Singapore Helix Bridge by Cox Architecture, the latest addition to our Christmas countdown. More about Dezeen's A-Zdvent calendar: Helix Bridge by Cox Architecture
For day seven of our bridge-themed A-Zdvent calendar, the spotlight is on the Gateshead Millennium Bridge by Wilkinson Eyre Architects, which tilts open like a blinking eye to allow tall ships to pass. More about Dezeen's A-Zdvent calendar: Gateshead Millennium Bridge by Wilkinson Eyre Architects
The letter F in our festive countdown of bridges is a small looping structure built by a trio of product design students outside the Academy of Fine Arts in Sarajevo. More about Dezeen's A-Zdvent calendar: Festina Lente by Adnan Alagić, Bojan Kanlić and Amila Hrustić
Featuring an angular white pylon with a shape that has been compared to a swan, Ben van Berkel's Erasmus Bridge in Rotterdam is the latest addition to the Dezeen A-Zdvent calendar. More about Erasmus Bridge by Ben van Berkel
The fourth bridge in our alphabetical Christmas countdown is a structure in Norway by artist Vebjørn Sand, which is based on a previously unrealised design by Leonardo da Vinci. More about Dezeen's A-Zdvent calendar: Da Vinci Bridge by Vebjørn Sand
Number three in our bridge-themed A-Zdvent calendar is the Jerusalem Chords Bridge by Spanish architect and engineer Santiago Calatrava, which is designed to look a giant harp. More about Chords Bridge by Santiago Calatrava
It's day two in our Christmas countdown of contemporary bridges, one for every letter of the alphabet. For the letter B, it's Frank Gehry's first bridge – a serpentine structure between two Chicago parks. More about Dezeen's A-Zdvent calendar: BP Pedestrian Bridge by Frank Gehry
Welcome to Dezeen's 2015 A-Zdvent calendar! This year we're showcasing iconic contemporary bridges in our alphabetical countdown to Christmas, starting with the Akashi Kaikyō Bridge in Japan. More about Dezeen's A-Zdvent calendar: Akashi Kaikyō Bridge by Satoshi Kashima
Danish firm Bystrup has been selected to design a new pedestrian and cycle bridge across the River Thames in west London – the same day another crossing was unveiled for the other side of the city. More about Bystrup triumphs in Nine Elms to Pimlico bridge contest with "elegant and simple" design
London studio reForm Architects has revealed plans for an opening bridge that would allow both pedestrians and cyclists to travel across the River Thames between Canary Wharf and Rotherhithe (+ movie). More about London's first opening pedestrian and cycle bridge proposed for Canary Wharf
DANS Architects used timber planks and shingles to create this footbridge and cycle path, which connects a Slovenian village to nearby lakes and mountains (+ slideshow). More about Arching wooden footbridge by DANS Architects connects Slovenian village to mountains
NEXT Architects has completed its Batbridge in South Holland, which integrates spaces for bats to roost in during different seasons (+ slideshow). More about NEXT Architects completes bat-friendly bridge in the Netherlands
The world's first 3D-printed bridge in Amsterdam uses a technique that designer Joris Laarman says could soon be used to build "infinitely large structures" (+ interview). More about Joris Laarman's canal bridge in Amsterdam could take 3D printing "to a higher level"
A vision of a blazing bridge has won a tongue-in-cheek competition seeking "alternative but equally ridiculous" design proposals that could replace Thomas Heatherwick's much maligned Garden Bridge for London. More about Eternal bonfire on the River Thames wins satirical contest to rival Heatherwick's Garden Bridge
Amanda Levete, Grimshaw and Heneghan Peng are among the six teams that have unveiled designs for a new bridge over the River Avon in Bath, England (+ slideshow). More about Six designs unveiled in shortlist for Bath Quays Bridge competition
Danish-Icelandic artist Olafur Eliasson has created a bridge spanning a Copenhagen canal, which features a series of wire masts based on ships' rigging (+ slideshow). More about Copenhagen bridge by Olafur Eliasson is designed to resemble ship masts
Berlin crowdsourcing platform Jovoto has launched an open design competition to repurpose a defunct railway bridge spanning the Danube river in Linz. More about Crowdsourcing campaign launched to repurpose Austrian bridge
Zaha Hadid Architects has won a competition to design a 920-metre-long bridge across the mouth of the Tamsui River in the Taiwanese capital. More about Zaha Hadid wins contest for landmark bridge across Taipei's Tamsui River
Rotterdam studio ZUS has completed what they describe as the "world’s first crowdfunded public infrastructure project" - a 400-metre-long pedestrian bridge in their home city (+ slideshow). More about Crowdfunded Luchtsingel pedestrian bridge opens in Rotterdam
This glass-encased lift and elevated walkway have been created by architecture studio Vaumm to improve access between the new and historic centres of Spanish town Hernani (+ slideshow). More about Glass elevator and steel bridge by Vaumm connect two neighbourhoods in a Spanish town