Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

World's smallest skyscraper, the product of a remarkable con.

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

This statue of two men in a rowboat was erected to honor those who died while fishing in the Chesapeake Bay.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The patron saint of spinsters grasps a container of dried blood.

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

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A fearsome dragon clings to a corner of Munich's city hall.

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

The "Prussian Versailles" that is as glorious today as when it was built.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Metro station with a claim to rock n' roll fame.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

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

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.