The summer home of the largest colony of bats in the world.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Over 100 million years ago, beach-bound dinosaurs left permanent marks on San Antonio's landscape.

A former copper mine which became a truly unsuccessful prison.

This Canadian monument to the man who invented the telephone allows visitors to get up close and personal with the artifacts of his life.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

A collection of full-size movie monsters opened to the public.

The world's largest rotating world.

The third version of this tall sailing ship sits, rusted and burnt, in Lake Ontario.

Half of a waterfall goes into the river while the other half seems to disappear.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

A stone face watches over the river.

This massive roadside mascot was the first version of the giant to illustrate his butt.

A curious sculpture garden and museum in Cochrane, Wisconsin.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A terrific purveyor of natural history objects and curios.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

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