One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

Moonbows over Kentucky.

Prehistoric animals decorate this popular outdoor park.

The world's longest known cave system.

A Collegiate Gothic quadrangle that surrounds an 18th century secondary school whose financing came from the likes of Alexander Hamilton and Aaron Burr, among others.

Love is in the air along the small street in Brooklyn.

HBO series' stage tucked away in a Greenpoint lot is the largest theatrical set of its kind in the United States.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

An unassuming 13-acre park is home to over 12,000 roses.

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

One of Cincinnati's greatest fighters once trained at a now defunct gym in this Over-The-Rhine neighborhood.

This magnificent Cincinnati graveyard is also a popular public park.