Lie in a hammock where George Washington stood.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Elevated freight railway turned wildly successful urban park.

A formerly abandoned mental institute, now back in business.

The romance of early commercial flight still fills this Art Deco destination.

In paradise, feral pigs have claimed an island all to themselves.

An early-19th-century hotel with a past that is steeped in the Civil War.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

The crypts are so large they're basically their own underground church.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

D.C. once had its own tiny rival to the New York Stock Exchange.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The "lovely red Vega" of the legendary record-settling pilot.

Look closely and you’ll notice that the color changes a third of the way up the tower.

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

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

This bridge was constructed from the rubble of the infamous Bastille.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

The approximate spot where the last Grand Master of the Knights Templar was put to death.