COSI is open Thursday through Sunday, 10am – 5pm. Plan Your Visit

Science boxes with five days’ worth of themed STEM activities and science experiments for kids delivered right to your front door!

COSI Connects Kits - Science boxes with five days’ worth of themed STEM activities and science experiments for kids delivered right to your front door!

COSI's Science of Big Machines

Back for the 19th year, a variety of construction equipment converges in downtown Columbus for COSI’s annual Science of Big Machines. Get behind the wheel and experience equipment that builds roads, bridges, and buildings!
August 5-8, 2021

COSI invites you to explore the science and technology of construction by trying it out first hand and learning with real engineers.

From small tools to big equipment, you’ll discover how big jobs get done. A multitude of pieces of construction equipment will be on hand to explore.

Due to COVID-19 limitations, Science of Big Machines will still be located on the West side of the COSI building, but may look a little different than previous years.

Included with COSI General Admission and Memberships

RESERVE TICKETS
COSI's Science of Big Machines

Back for the 19th year, a variety of construction equipment converges in downtown Columbus for COSI’s annual Science of Big Machines. Get behind the wheel and experience equipment that builds roads, bridges, and buildings!
August 5-8, 2021

COSI invites you to explore the science and technology of construction by trying it out first hand and learning with real engineers.

From small tools to big equipment, you’ll discover how big jobs get done. A multitude of pieces of construction equipment will be on hand to explore.

Due to COVID-19 limitations, Science of Big Machines will still be located on the West side of the COSI building, but may look a little different than previous years.

Included with COSI General Admission and Memberships

RESERVE TICKETS