If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

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

The most powerful waterfall in all of Europe.

This elegant arc of a waterfall marks a religious turning point.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

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

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

Home to the world's oldest wooden building.

A fiery crater has been burning in the Karakum Desert since 1971.

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

When the USA donated cement and funds to expand the airport in Laos, the Laotians built a massive monument instead.

Ancient barriers wrap around what was once an important stop along the Silk Road.

This candy-colored storybook village originated as a 19th-century Methodist campground.

A mysterious stone embedded at the base of a historic Boston building.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.