In spring 2002, Lufthansa donated a retired Boeing 747-200 aircraft, which is now accessible to visitors.

[2] In April 2008, a Soviet/Russian Buran spacecraft, OK-GLI, was transported to the Technik Museum and is now another walk-in exhibit.

Other walk-in highlights are an Antonov An-22 whitch donated in Winter of 1999 from Antonov Airlines and several other aircraft types, locomotives, the houseboat Sean O'Kelley of The Kelly Family, and submarine U9 of the German Navy.

Other exhibits display fire engines, mechanical organs, vintage cars, motorcycles, locomotives, helicopters and military aircraft.

There is also the Wilhelmsbau, a separate building which shows rare objects including historic fashion, weapons, jewels, dolls, toys, uniforms, and automatic musical instruments.