Being one of Germany's major cities, Frankfurt offers a reasonably diverse club and bar scene, even though it doesn't quite reach Berlin's or Hamburg's standards.

There are scores of bars and restaurants all over the city. From the "traditional" apple wine bars in Alt-Sachsenhausen (typical German/Frankfurter), the partly posh bars and restaurants in the Innenstadt (inner city) (check out the area around Goethehaus for a number of bars) to the more alternative bar scene in Bornheim or Bockenheim, the interested traveller can certainly find something for his/her personal taste. Unlike in England, there is no specific time when most bars close, many are open all night on weekends, but on a regular weekday a typical closing time will be 1.00 am - still, it is always possible to find a bar which will serve a beer until there is nobody left who wants one anymore.

As for dining, restaurants can be found nearly anywhere ( http://www.frankfurtrestaurants.com/ might give you a good impression) - but for starters the Schweizer Straße in Sachsenhausen offers a variety of restaurants of all nationalities. Frankfurters, however, tend to prefer the apple wine restaurants along the adjacent Textorstrasse (i.e., Feuerrädsche, Germania, Kanonesteppel, Atschel). Another good bet is the area around the Fressgass and the Alte Oper. The Berger Strasse in Bornheim (Ginko's, Mirador, Rucola, Schöneberger, Wacker's) also has a lot of Frankfurt's favorite gourmet hotspots.

The club scene is diverse and a recommendation for a certain club largely depends on your personal taste:

Frankfurt is internationally renowned for its TechHouse scene - clubs like the Robert-Johnson in adjacent city Offenbach, the Cocoon Club in Fechenheim or the U60311 (for a younger audience) near Hauptwache offer a more or less sophisticated techno programme with different DJs from all over the world. Hanauer Landstraße has become something like a "clubbing street" with quite a few different clubs along the (very long, so don't try to walk...) street.

 For mainstream clubbing, the Living XXL (at the foot of the European Central Bank) attracts the banking crowds, Club 101 (house) is atop of a skyscraper (but is only open sporadically) and the Sansibar (in the same building) is probably one of the glitziest around. Also, there is a variety of clubs offering all kinds of music from Electronic Music via Party Tunes to Indie / Alternative. An - unfinished - list of clubs can be found here: http://www.world66.com/europe/germany...  (English), a better one here: http://frankfurt-interaktiv.de/frankf...  (German only). The best idea is to simply get a nightlife guide (the most important one is the "Journal Frankfurt" - German language only though) and see what attracts you most.

 Good bars in the downtown area can be found in unusual spaces. The MainTower's bar probably has the most impressive view (although it charges an entry fee to get atop the building) along with Bar22 in the Eurotheum (live jazz music). The glamorous KingKamehameha Lounge is housed in an old villa across from the Alte Oper market square (beware of high prices). The most lasting impression you'll get of Frankfurt might be the view you'll get from the Long Island Summer Lounge atop a parking garage (a stone's throw from the Fressgass) and similar to the beach clubs you find in many German cities.

 Next to Hamburg, Frankfurt probably has Germany's best beach club scene (sand, volleyball, good drinks): Galeria Beach Club and KingKamehameha Beach Club (both in Offenbach) along the Main River are the standard bearers. A new addition is the CityBeach Club atop the Peek and Cloppenburg parking garage. Generally, the south side of the Main River is a meeting place for the crowds during the summer. Especially, the area around the Main Cafe is a sight to behold.

For rock concerts, there are a few traditional locations: the famous Batschkapp in the north of Frankfurt (Eschersheim) is the "classic" concert location, but places like Mousonturm in Bornheim near the Zoo and, recently, Brotfabrik in Hausen have caught up and attracted a variety of indie bands from all over the world. Most indie concerts are booked by a local booking agent whose programme is published here: http://www.markusgardian.de/. Of course, there are also the "big names": Frankfurt's biggest indoor venue is the Festhalle near Messe which offers a capacity of up to 15,000 people, other important concert venues include the Jahrhunderthalle in Hoechst, the Alte Oper in the city centre or the Jazzkeller, just to name a few.

Overall, there is a lot more than meets the eye and for its size, Frankfurt's diversity in clubs, bars and concert venues is impressive.