Menzoberranzan
Menzoberranzan is the 2nd most famous city of drow in the Dungeons & Dragons multiverse - well, technically, it's the most famous, because Menzoberranzan was invented by R.A. Salvatore for his Drizzt novels, which normies are aware of, and Erelhei-Cinlu is a Greyhawk original that was then recreated in the Nentir Vale, so only actual gamers know about it, but it still was created second.
Originally, Menzoberranzan was supposed to be an example of what a drow city is like when the cult of Lolth runs the show, but it became so entrenched in the minds of Forgotten Realms fans that it resulted in Lolth becoming the sovereign deity of all drow.
One interesting fact about Menzoberranzan: there was originally a House devoted to psionics who almost conquered the city and drove out the Lolthite priests during the Time of Troubles.
Menzoberranzan even got its own dedicated splatbook, released towards the end of the era of Dungeons & Dragons 4th Edition, but focusing on the city as it had existed throughout the ages of Toril, from its founding through to the then-present of 100 years post-Spellplague.