Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

The footprint of a frustrated devil in Munich's Cathedral.

A small but immensely extravagant palace built by the "Night King."

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A meteorite-bounded town in Bavaria.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The narrowest street in the world is in danger of closing up entirely.

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

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Memorials and tributes scattered across the university grounds remember a famous national tragedy of the Nixon era.

This historic hotel invented the chocolate brownie.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

The palatial McDonald's that inspired Wesley Willis.

All of Chicago's wood-paved streets are long gone but two alleys remain.

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

Home to a protest movement, a bombing, and a dramatic change in labor history.

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

First planned industrial community in the United States.