Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

The ruins of the suspension bridge hang over Kingsbury Run as a ghost of racial prejudice.

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.

The oldest surviving wood-frame building in North America is still in the family.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

Deep scars on the earth left by the Ice Age.

These beautiful wineries were at the center of Lake Erie's "grape belt" back when the Midwest dominated American wine production.

Here, at the “world’s longest art gallery,” you’ll find forty miles of ancient petroglyphs and pictographs.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

World War II bunker still standing on the New Jersey beach.

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

An 18th-century Spanish watchtower made entirely of seashell and concrete.

A building so large that it has its own weather.

A circus legend leaves an unexpected endowment.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

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

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

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

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.