One of the castles on the BAD GUY side is
DR. DOOM

Appearance Height: 6' 2" Weight: 225 lbs Eyes: Brown Hair: Brown Other Distingushing Features: Wrapped in a sophisticated polished tin can, with matching green cape.

Background

Victor von Doom is a megalomaniac on a grand scale. Dictator of Latveria, traditional foe of the Fantastic Four, he would, at first glance, be a bit more than Spider-Man would want to tackle. Nonetheless, the renowned Doctor of Destruction has gone a few rounds with Spider-Man from time to time, and the webcrawler has done well to walk away unscathed. Doctor Doom is a formidable opponent - being well resourced, highly skilled, and favouring well planed actions which put the odds on squarely on his side.

Biographical Data

Summary

Real Name: Victor von Doom
Other Current Aliases: None
Former Aliases: None
Dual Identity: Generally known
Current Occupation: Dictator of Latveria
Former Occupation: None
Citizenship: Ruler of Latveria
Legal Status: Diplomatic Immunity in the U.S.
Place of Birth: Latveria
Marital Status: Single
Known Relatives: Werner (Father, deceased) Cynthia (Mother, deceased)
Known Confidants Silver Sable
Known Allies: His Doom-droids
Major Enemies: Fantastic Four, Spider-Man, X-Men, etc
Usual Base of Operations: Latveria
Former Base of Operations: Latveria
Current Group Membership: None
Former Group Membership: Acts of Vengeance
Extent of Education: University scholarship commenced, but not completed

Powers & Paraphenalia

Strength level: Normal (Super-human with armour) Powers: None (Armour provides flight, aquatic, concussion beams, etc) Abilities: Consciousness projection; Extraordinary genius in most areas; Described as the second most proficient sorcerer in the Marvel Universe (see Triumph and Torment). Equipment: Armour Weapons: Inbuilt weapons, and a 9mm Mauser Limitations: Despotic, and occasionally prone to self-over-estimation

http://www.sigma.net/spiderman/characters/villains/doctor_doom.html