The final resting place of the great navigator, or maybe his brother.

The world's largest wooden structure.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

A sulfuric martian landscape that looks far better than it smells.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

It's a pretty creepy lock-up.

An art deco ice cream shop covered in vintage train station tiles.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

This magnificent Cincinnati graveyard is also a popular public park.

Inside, ancient treasures. Outside, modern contradictions.

The largest earthwork effigy in the world.

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

"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."

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

A recreated sign from the movie Jumanji has become a makeshift tribute to the film's late star.

According to legend, Bob Dylan sneaks in twice a year to eat dinner with Jack.

The first Russian Orthodox church in North America and an Alaskan landmark.

An encyclopedic collection of mammal penises.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.