A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

Perhaps the most unique of any Frank Gehry design for one simple reason: Gehry himself actually lives here.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

The legendary building that needed ghostly approval before being built.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The Sun King's military models, saved from the Louvre.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

One of the world's largest model railroads is a mind-boggling achievement.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

Back in the tiny USSR.

A swing to dangle you off the very edge.

A steam powered train that runs on city streets.

Model Trains and Much More in Hamburg.

A surrealist timepiece by the artist of melting clocks.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

America's post-nuclear-attack chambers of Congress.

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

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

This East German military command bunker was ready for World War III.

An eerie, derelict amusement park in Berlin.

Berlin's old airport.

When German-Iraqi relations broke down, this embassy was vacated post haste.

Floating swimming pool within a moored vessel.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.