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

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

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

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

Medicinal spa created with the discharge from a geothermal energy plant.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

Putting the "mod" in "modular" since 2000.

This shop specializes in oddities and Victorian-inspired wonders.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Golden Gate Park's historic collection of plants.

A century and a half of research in the sciences and natural history, still going strong.

A shining, cold, black organ lies in San Francisco's financial district.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

From the Difference Engine to the Cray-1, all under one roof.

Its collection includes a broad array of social, geographic, graphic design, and political history.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The medieval woodcut-style artwork chronicles life in medieval London.

A student driver's nightmare.

It houses the remains of a 17th-century version of the Titanic.

The Pope’s secret escape route.