This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

This nine-story building can be played like an instrument.

The Vermont grave of a 4,000-year-old mummy prince.

Nose around a unique collection of more than 300 natural aromas used to craft fragrances.

The humble horn finally finds a place in the sun.

Statue commemorating the use of ether in anesthesia.

A wild west land agreement was etched right onto this historic Idaho stone.

Turns out you can see the world without ever leaving Maine.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

San Francisco’s century-old Christmas Tree.

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

A chessmaster's dream destination.

A much-maligned monument to teetotalism.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

Submerged lava formations create incredible waterworks.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

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

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

Site of the first pathological and bacteriological research facility in the United States.

These subterranean storage areas hold emergency water reserves.