You have to know where to look in this rather ordinary-looking square to find hints of its past as a dissidents' cemetery.

One of the oldest colonial buildings still standing in South America.

A replica of a beloved, delicately-balanced granite boulder.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

A small but industrious mining operation that allows visitors to touch precious gems while they are still in the rock.

A bright little alley in La Boca is a part of tango history.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

An abandoned, rusty old relic of railroad history stands at attention over the Cuyahoga River.

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

One of the last few period-correct, hand-operated canal locks in the country.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

The largest ancient burial mound in Ohio.

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

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

Deep scars on the earth left by the Ice Age.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Rare recess caves fill this unbelievably beautiful Ohio park.

The largest earthwork effigy in the world.