I'm sure there are thousands of fantasy maps posted on-line. Below are links to over 101 fantasy cities and towns.  It can be useful to see such a large and varied set of examples to help you design your map. While looking at these, you may want to borrow part of a city or town's layout, a map's color scheme, or some other feature of a map.

If you're only using a map for personal use, you can just doctor the map in an image editor (like the free GIMP or Inkscape or the expensive Adobe products) or even on paper once it is printed for use in your game and campaign world.

1-6: Opal Island, Carthusal, Wolfdell,  Fogdown, Gullside, Kenby at Cartographer's Guild.

7-13: ProFantasy's City Designer 3 samples (7 city/town maps.)

14. Irva, the City of Sin.

15. Tallon, The Jewel of Merrika.

16-18. Map Vault: Fantasy includes City of Liberty, Guildport, and Tower of the Magus (3 maps).

19. Jendar - City of Adventure (scroll down past the world maps.)

20. The Imperial City of Anuire

21-28. Materia Magica's City Maps: Rune, Village of Lasler, Lowangen (and Lowangen detailed), Tellerium, Templeton, Sigil and Vospire (8 maps.)

29-31. The Alexandrian's City Supplements include a couple of samples: Dweredell, Aerie, and Anyoc (3 maps.)

32-43. Mystara city maps: Blackmoor, Glantri City, Kelvin, Kirkuk, Lhamsa, Mirror Bay/Specularum, Skullhorn Pass, Specularum, Surra-man-raa, Tamaronikas, Trintan and Ylaruam (11 maps.)

44. Runes of Magic's Varanas.

45. Your Conworld in 3D: City Maps in DAZ Studio and Bryce (includes a sample city map in various stages of editing.)

46-64. Gandwarf's City Designer 3 maps (18 maps.)

65.Glastona

66-71. Sopar's Dragonlance Maps: Pax Tharkas, Nereka, Qualinost, Vingaard, Silvanost, Palanthas (6 city/town/village maps.)

72-81. Tower of High Sorcery's Dragonlance maps: Hillhome, Kendermore, Lemish,  Palanthas, Palanthas Old City, Que-shu, Relgoth,  Solace, Solanthus and Tarsis (10 city/town/village maps.)

82-92. Wizards of the Coast's Map-a-Week (link includes non-city/town/village maps) maps: Sutulak, Blackwall, Kaddastrei, Dragonport, Four Winds, Village of Barovia, Village of Eastbrook (300dpi version), Necropolis (300dpi version), Forested City (150dpi version), Canal City (150dpi version), Section of Sigil (150dpi version), Village Poisson, Timber Fort, Wood Fortress, Stone Fortress, Stone Castle,  Haunted Village,  City, Village 1, Village 2 (20 maps.)

93. Zothay

94-98. Sundabar, Silverymoon, Luskan, Waterdeep, Eveningstar from the Wikia Forgotten Realms website.

99. Brindol

100. City of Greyhawk

101. Sharn