BLOOMFIELD HILLS, Mich. -

Cranbrook Institute of Science says it is celebrating the holiday season with special opportunities to view its new observatory and wigwam.

The institute says its observatory offers free-with-admission programming that examines the geological, historical and cultural aspects of winter in Michigan, seasonal programming in the planetarium and underwater exploration.

MORE:Up, up and away! Cranbrook gets a makeover

Cranbrook says its new observatory offers access to the only research-grade telescopes regularly open to the public in the Midwest. Three new telescopes, architectural redesign and upgrades in the viewing space, a new dome and direct compatibility with the planetarium create an entirely new experience in celestial studies.

The observatory will be open during expanded hours for daytime tours from Dec. 26-29 from 1 to 4 p.m. Cranbrook says nighttime viewing will be available on Dec. 28 and 29 from 8:30 to 10:00 p.m.

Cranbrook says there is an additional charge for a bat or planetarium program. To preview planetarium programs and learn more, click here.

VIDEO:Cranbrook Institute of Science installs new observatory dome