LONDON, England (CNN) -- Identifying the world's finest airports is easy. Hong Kong International Airport, Singapore's Changi and Seoul's Incheon have topped the ranks of airport awards for the last decade.

Sitting comfortably? Not at Delhi's Indira Gandhi International Airport, ranked by some as one of the worst.

These 21st-century airports boast the best shopping, classiest restaurants, as well as features such as indoor pools, orchid gardens, and free wireless Internet. See world's best airports

The world's worst airports, however, are harder to pin down. It's a crowded field to choose from and the choice depends on what you class as bad. See our pick of the world's worst airports Â»

If it's for danger, then Baghdad International Airport, in the middle of a war zone, should rank pretty high.

Lukla airstrip -- gateway to the Mount Everest region in Nepal -- is also a strong contender.

Landing involves a hair-raising plummet onto an uphill airstrip cut into the side of a mountain. On takeoff, the airstrip comes to an abrupt end at the edge of a mountain cliff.  What do you think is the world's worst airport? Sound off below

Watch CNN's Ayesha Durgahee examine what it takes to become Airport of the year in Hong Kong. Â»

In 2007, TripAdvisor asked travelers to rank airports according to how easy they are to navigate, the cleanliness of the lavatories and parking facilities.

Based on these factors, the 2,500 respondents classed London Heathrow and Chicago O'Hare as the world's most hated.

Yet neither of these major hubs appeared in Foreign Policy magazine's review of the five worst airports, published in 2007.

The list here included the likes of Mineralnye Vody airport in Russia for its feral cats and daggers on sale in the departure lounge.

Charles de Gaulle also gains little affection from those that pass through its interminable terminals. As Foreign Policy says, "visitors to Paris should expect more than the grimy terminals, rude staff, confusing layout, and overpriced food."

Where was your worst airport experience in 2008? Which airport do you think is the most dangerous, uncomfortable or aggravating? Sound Off below

We're also looking for photos and video of your worst airport experiences. Send them to the Business Traveller page on CNN iReport

Here's your chance to grumble.
Who has the worst airports? Which airports are ranked the best by travelers? What does Hong Kong, Singapore and Seoul have that are considered the world's best? Where should you send your photos? Who has the most terrifying terminals and rude staff? Who should you send your photos to? What did travelers rank? Which airports do travelers rank as best? Who did travelers rank as the world's best airports?
Baghdad International Hong Kong International airports Business Traveller page on CNN iReport Charles de Gaulle Business Traveller page on CNN iReport airports according to how easy they are to navigate, the cleanliness of the lavatories and parking facilities. Hong Kong International Hong Kong International
question: Who has the worst airports?, answer: Baghdad International | question: Which airports are ranked the best by travelers?, answer: Hong Kong International | question: What does Hong Kong, Singapore and Seoul have that are considered the world's best?, answer: airports | question: Where should you send your photos?, answer: Business Traveller page on CNN iReport | question: Who has the most terrifying terminals and rude staff?, answer: Charles de Gaulle | question: Who should you send your photos to?, answer: Business Traveller page on CNN iReport | question: What did travelers rank?, answer: airports according to how easy they are to navigate, the cleanliness of the lavatories and parking facilities. | question: Which airports do travelers rank as best?, answer: Hong Kong International | question: Who did travelers rank as the world's best airports?, answer: Hong Kong International