The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Monument to a suicide protesting the Soviet invasion.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

The site of the climactic scene from the classic horror film is now a historic landmark.

At 207 feet, one of the world's longest continuous escalators.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

Home to items never before seen by the public.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This replica of the Greek structure is in the heart of Nashville.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

The record holder for the world’s largest peach.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

One of the largest underground systems runs under Canada's largest urban center.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."