An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A memorial for an outsider theorist who believed that the planet is actually hollow.

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

The largest ancient burial mound in Ohio.

A headstone tells the sad story of a lost little boy and his pet dog.

A miniature world of concrete and stone in Springfield, Ohio.

Plaques on its facade commemorate the Tiber's most destructive deluges.

Take a drunken tour inside the world's largest known geode.

For decades, this waterfall remained hidden because of an artificial dam.

An elegant sandstone stairway built by the WPA still connects two neighborhoods in Akron.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

An Inca spa, military outpost or maybe… both?

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

This historic square in Nepal is home to temples dating back to the third century.

Many Hindus make the long pilgrimage to this holy city to have their remains burned on the banks of the Ganges River.

These medieval funerary monuments are now home to a colony of critically endangered vultures.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.