Marvel fans rejoice -- 221 of the coolest, awesomest “Captain America”, “Thor” and “Iron Man” props are hitting the auction block ... and they can all be YOURS ... if you got a 6-figure bank account.

The auction -- run by a group called Profiles in History with help from Marvel Studios -- is set to kick off online April 14th ... and in-person at the Chicago Comic & Entertainment Expo.

Among the ridiculously expensive collectibles (with their starting bids) --

-- The full Mark II “Autopsy” Suit from "Iron Man 2" ... $60,000

-- Chris Evans' complete Captain America Suit ... $20,000

-- Steve Rogers’ Hero Motorcycle (Harley Davidson) ... $12,000

-- Thor’s Hammer ... $4,000

-- Captain America Stunt Shield ... $3,000

... And hundreds of other pricey gadgets, props, and costumes from the movies.