If you're taking a vacation to Chicago this summer, many of Chicago's biggest attractions are offering free admission on selected days.

Since museums can get pretty pricey when you have a family, the city of Chicago announced their Summer Museum Days for all Illinois residents (according to chambanamoms.com).

The Museum of Science and Industry will have free days on June 5th through the 9th and June 12th.

Shedd Aquarium's free days are June 5th, 6th, 12th & 13th. Enjoy the surroundings of all type of ocean and river animals, and make sure you take in the whale show.

Take in The Field Museum where you can discover Sue the T-Rex, explore Ancient Egypt, and more (all for free) June 21st through the 23rd.

Adler Planetarium is offering you the chance to reach the stars June 5th through the 9th.

For a full list of participating Chicago museums, click here.

Don't forget to register for your chance to with two round trip tickets on Amtrak to Chicago.