In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This sea stack in Cyprus is traditionally seen as the birthplace of the goddess Aphrodite.

A musical instrument played by the sea.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A 4th-century Roman church complete with a hidden underground cave.

While most shipwrecks are submerged, this ship in Cyprus ran ashore.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

A Nazi concentration camp and Anne Frank's place of death.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

An ancient necropolis of magnificent tombs.

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.

An encyclopedic collection of mammal penises.

Walk in the footsteps of the gods and straddle two tectonic plates.

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

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

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

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