The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

Make your reservation to have coffee with some kitties.

This working class sculpture pounds his hammer all the livelong day.

A wall of chewing gum moonlights as collective art.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

Pilgrimage site for star-crossed lovers.

A huge, bustling local market in Panama City.

The Pentagon is so large that it was planned like a city, complete with internal highway infrastructure.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

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

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

Where pardoned turkeys once spent their all-too-brief final days.

A former major munitions plant that has been converted into a sprawling art space.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

This suburban house is made of dirt, and almost sparked a revolution in home construction.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.