Biggest vault door I have ever seen in person and coolest bank building.
Here are the specifications:
This large 24-bolt Diebold vault door at the Winona National Bank was built in the early 1900's. On the right is the back side of the open door. To the right of the door's center are two linked boxes for the combination mechanisms and to the left is a four movement time lock. This door has a four point pressure system (note the two pressure system stanchions left of the door opening) capable of exerting 1/3 of the doors weight in pressure. Since this door weighs 22.5 tons (45,000 Lbs.) its pressure system is capable of applying 7.5 tons (15,000 Lbs.) of pressure.
https://upload.wikimedia.org/wikipedia/ ... kVault.JPG
They offer tours. They have cool a safari taxidermy animal collection and Tiffany Glass also.
Video tour explains deeper: