More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

This 19th-century religious artwork was once highly controversial—because it was donated to the church by a divorcee.

A museum, walk-through diorama, and library nestled under one castle-like roof.

A fitting attraction for the corn capital of the world.

This museum is a full-size replica of an original church constructed during the 13th-century.

The world's tallest turtle riding the world's largest snowmobile.

A rim-made reptile in North Dakota.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

This ambitious attraction was the brain child of a lake resort impresario, and built by the WPA.

A mapping error in the 19th century made loggers think this section of the forest was underwater.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

Over 140 boathouses built by miners from the Soudan Iron Mine in the early 20th century overlook Stuntz Bay on Lake Vermilion.

This tiny Minnesota city tried to secede from the Union as a last-ditch effort to fix its crumbling water system.

The world's largest floating loon bobs in the lake to kick off an annual festival.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

It's good luck to be mocked by this monkey.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A unique look into the bowels of a century-old funicular.

In this German city center, the streets have no names.

St. Peter’s, in Western Germany, has stood as a masterpiece of Romanesque architecture since 1181.

An ancient Roman temple hidden in the basement of Römerpassage, a modern shopping mall.