How did Santiago Calatrava's World Trade Center Transportation Hub come to be? This intriguing new series explores the inspirations behind the world's architectural marvels.

A look at London's mammoth Battersea Power Station, brought back to life after 30 years of dereliction with designs from architect Jim Eyre.

An in-depth look at Japanese architect Kengo Kuma's first UK project, the magnificent V&A Dundee, including the huge challenges behind its construction.

A look at how Thomas Heatherwick's unusual and stunning design of many staircases became a mind-blowing tourist attraction in Manhattan, known as the Vessel.

A look at Ptolemy Dean's Weston Tower, which lies within Westminster Abbey. Exploring what went into designing the most significant addition to the historic site of Westminster Abbey in 240 years.

Explore the inspiration behind architect Graham Stirk's stunning Macallan Distillery in Scotland.

A look into the stunning Smithsonian National Museum of African American History - designed by British architect David Adjaye, and inspired by the art and history of Africa.

An inside look at the architecture behind London's new Design Museum in Kensington, a result of minimalist John Pawson's exquisite vision.

With his work loved by the Prince of Wales, John Simpson is the modern architect who creates breathtaking classical buildings - including his own Hampshire house.

The final episode explores the theatre at London's Alexandra Palace. Restored by Matt Somerville, he infused it with modern touches, while keeping its rich history alive.

Bee'ah Headquarters, Sharjah, United Arab Emirates: The series starts with a look back at the career of the late Zaha Hadid and meets the team who continue on her legacy.

The series continues with a look at the stunning mosque found in the heart of Cambridge as architect Julia Barfield reflects on its construction.

Lambeth Palace Library and Archives, London: Husband-and-wife duo Clare and Sandy Wright reflect on designing the state-of-the-art library and archive in Lambeth Palace.

Sir Michael Hopkins and his wife detail their latest project - a stunning choir school in Wimbledon.

Swiss-British architect Christina Seilern reflects on her commission to create a world-class concert hall in the Swiss Alps.

A look at the work of RIBA award-winning Swedish architect Magnus Strom and his unique new take on Mid-century Modern.

A look at the spectacular building, crafted by architect Jean-Michael Wilmotte and estimated to have cost 100 million euros.

A look at the railway station designed by veteran architect Sir Nicholas Grimshaw, who also designed Waterloo International. (

Marvel at the Palais de Justice by Italian architect Renzo Piano, a Pritzker Prize winner noted for buildings such as the New York Times headquarters.

The design of buildings at Expo 2020 in Dubai, from the Mobility Pavilion by Norman Foster's practice to the Sustainability Pavilion by Nicholas Grimshaw.

Series three begins with Norman Foster - a leading figure in British architecture, famous for The Gerkhin and London's Millennium Bridge.

A look at Daniel Libeskind's National Holocaust Memorial of Names in Amsterdam, which commemorates Dutch people who were killed in Nazi concentration camps.

Seeing the potential of the High Line in New York, Liz Diller extravagantly designed The Shed - a truly unique structure, on wheels.

A look at the work of Cirencester-based Yiangou Architects and it director Ross Sharpe Ross, who have built a reputation for designing new country houses in the Jacobean style, while incorporating influences from a number of periods and styles.

A look at the work of Brian Mackay Lyons, a winner of Canada's Gold Medal for Architecture who is famed for his buildings situated across Nova Scotia.