What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The oldest experimental corn field in America is still creating better ways to grow crops.

Fragments of a massive unfinished sculpture sit near the main quad of the University of Illinois.

An actor's tribute to a former mentor.

An amazing collection of scale model ships.

When flour explodes, it's not a pretty sight.

This vintage "streetcar boat" lay at the bottom of Lake Minnetonka until the 1980s.

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

Thousands of people walk over this fantastic work of art every day, but how many notice it?

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

World's largest carved onyx figure stands as a tribute to enduring peace.

These curious caverns have been home to mushrooms, gangsters, and disco.

Triangular House built on a leafy residential street in St. Paul.

A piece of solitude and tranquility in the heart of East Saint Paul.

The Real LegoLand.

During World War II the Thorp building was guarded by the OSS, FBI, and US Navy because of the top-secret bombsight being produced there.

This sculpture is dedicated to Minnesota natives who served in combat.

A Perpetually Under construction Park.

One of the coolest murals in Minneapolis.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

The only arched bridge made of stone on the entire Mississippi River.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.