Thailand's capital city is the well-known and popular tourist destination of Bangkok, but most people don't know that Bangkok's full ceremonial name is in fact Krung Thep Mahanakhon Amon Rattanakosin Mahinthara Yuthaya Mahadilok Phop Noppharat Ratchathani Burirom Udomratchaniwet Mahasathan Amon Piman Awatan Sathit Sakkathattiya Witsanukam Prasit – quite a mouthful! Fortunately, visitors certainly aren't expected to use the city's full name (nor do its residents), but it can still boast having the longest city name in the world according to the Guinness Book of World Records.

Other countries have some impressively-named cities too: in the United States, the cities of Winchester-on-the-Severn in Maryland, and Washington-on-the-Brazos in Texas are the longest place names at 21 letters each, although they do have hyphens to make them a little easier on the eye. And while it may now be abbreviated to the short and snappy LA, the city of Los Angeles was named after a river called El Rio de Nuestra Senora Reina de Los Angeles de La Poricuncula. Thankfully, the name was quickly shortened.

While not quite big enough to be considered a city, the Welsh town of Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch deserves a special mention at a whopping 58 characters long. It does get shortened, but only to a still-impressive Llanfairpwllgwyngyll. Other honorable mentions include the longest-named town in Europe, Azpilicuetagaraycosaroyarenberecolarrea in Spain, Äteritsiputeritsipuolilautatsijänkä, Finland and Muckanaghederdauhaulia in County Galway, Ireland

 

 
According to worldpopulationreview.