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

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A lush green oasis in the middle of Chicago.

Krakow's own version of the Hollywood Walk of Fame.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

Relive a Polish uprising via an enormous, century-old cyclorama.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

This grubby wall is said to be one of the Earth's esoteric energy centers.

This 13th century Gothic brick castle is the largest in the world by surface area.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

Inside this Krakow church, an explosion of psychedelic color.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This man-made mound monument was built out of soil from all across the Polish empire.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.