It's indisputable that the growth trend in OOH over the past 12 years has been more than favourable, and according to WARC's figures, successful brands already allocate an average of 13% of their media budgets to OOH.

Overall, out-of-home campaigns have been one of the most popular formats of advertising for decades, which creatives in particular are great at executing and presenting even an idea that would be difficult to showcase in a TV spot or online. We've looked a little further back in time and picked out a few of the most creative ones that still have something to say today.

Koleston - Change

This ad was created by Leo Burnett, Lebanon for Koleston, in October 2007.

Source: Ads of the World

BBC World - Woman

This heartbreaking campaign was reported by BBC World in November 2007.

Source: Ads of the World

Deadline Couriers - self destructing billboard

In 2007, New Zealand courier company Deadline Express Couriers presented its attitude to deadlines and how seriously it takes deadlines.

McDonald's - Giant egg

A giant egg created by Leo Burnett, Chicago in July 2008.

Image source: Trend Hunter

Calgary International Film Festival - The Crying billboard

OOH created by Wax, Canada for the Calgary International Film Festival, September 2010.

Image source: Ads of the World

Carlsberg – #ProbablyTheBest

The Economist

British creative advertising agency Abbott Mead Vickers BBDO came up with this creative OOH campaign in 2014.

Formula Toothcare – Bite

Ogilvy & Mather, Jakarta, designed this brilliant advertising campaign for Formula Toothcare in 2016

Image source: Ads of the World

Oldtimer - Tunel

Oldtimer, which is a major Austrian motorway rest area network, aired this innovative billboard called "Tunnel" in 2007.

Image source: Ads of the World

Panasonic - Nose hair trimmer

In 2009, Panasonic promoted a safety nose hair trimming system.

Source: Marketing Mind, 2/22