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

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

The United States Capitol's former columns still stand.

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

Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

The painted and decorated towers of this Hindu shrine were once the tallest structures in one of the oldest cities in India.

An ancient iron pillar in Delhi that seems to be rustproof.

A blooming house of worship for the masses.

An extraordinary "City of Caves" carved from solid stone.

A single tree's 2,800 aerial roots give the appearance of a complete forest.

Rock-cut cave complex filled with ancient Buddhist artwork.

Sacred Indian temple that’s all monkey business.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

A mecca for India's Jains.

The palatial McDonald's that inspired Wesley Willis.

An unassuming store hides relics of its former life as the jazz club that hosted some of the best black performers of the 1920s and '30s.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

Theater has had many different incarnations but has survived the ravages of time.