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

An encyclopedic collection of mammal penises.

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

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

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

This religious museum resides in a church crypt next to the founder's house.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A cluttered and astounding collection of antiquities and curiosities.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

An unusual round church in London with a Templar past.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The taxidermied remains of a once-great parrot.

Rebuilt remains of a temple to Roman god Mithras.

Hear the quietest sound from across the dome.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

A full-size replica of this well-preserved temple lets you take a walk through the Mayan age.

This staircase full of Mayan hieroglyphics is perhaps the largest single text in the world.

This fortress in Honduras was built to resist pirates, but its builders had more to fear from the British.

These colorful sawdust illustrations are trampled into non-existence only moments after they are finished.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.