A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

A particularly disconcerting tribute to Irish martyrs.

The modern birthplace of Irish freedom.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Five miles of underground river link lake to ocean.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.

A patch of Philippines forest devoted to saving the lives of an emotionally sensitive species of googly-eyed primates.

Bohol's unusually shaped hills turn brown in the summer months.