For almost 20 years it was an icon of Cardiff Bay .

The Cardiff Bay Visitor Centre was an award-winning structure that welcomed hundreds of thousands of visitors.

Affectionately known as 'The Tube' due to it's distinctive shape similar to a lighter, it was only supposed to stay up for five years.

But due to its popularity it was a part of Cardiff Bay's skyline from 1991 until 2010 - even taking it's designer by surprise.

Speaking to Building Design magazine in 2010, project architect John Lyall said: "I’m surprised it’s lasted this long.

An aerial shot of the bay showing the Tube in 2009

“It has been moved three or four times since it was built and the original intention was for it to be around for only five years.”

The building was finished during the summer of 1990 costing between £350,000 and £500,000 and first located next to the Pierhead building.

Originally housed to show off the then new Cardiff Bay development, it was moved closer to the Norwegian Church in 1993.

The whole building was hoisted on to a truck and driven to its new spot.

The Tube being dismantled

Thousands of people continued to flock to the building, which featured a huge scale model of the city.

Although well respected before the Tube came along, it's distinctive design helped Lyall and fellow designer Will Alsop to achieve greater prominence. 

It was shortlisted for a number of top awards, with experts saying the building "single-handedly put Cardiff on the architectural map".

The building was made steel hoops and PVC membrane so it could be put into storage and be reassembled in the future.

The huge scale model of Cardiff inside the Tube

In 2010 the land occupied by the Tube, which was rented from Associated British Ports, had to be handed back to they could build the Origami Bridge.

A Cardiff council spokesman said: "At this point the Tube was finally starting to show its age and was beyond economic repair.  After being dismantled the metal framework was initially stored before eventually being sold so the materials could be reused."

Although the Tube graced the Cardiff skyline for almost 20 years, all that's left in it's place is a empty patch of gravel.