World's largest Christmas store.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Astounding collection of coin-operated games and automata.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This sprawling bookstore spans four floors and has more than a million books in stock.

This stunning concert hall has become a symbol of Iceland's national recovery.

This tiny museum's sizable collection is jammed into a former underground public toilet.

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

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

Staves, storm-calling, and of course, necropants.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

The massive machine creates cracking displays of indoor lightning.

No one really knows how these old hobby horses got here, but the herd keeps growing.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

An 80-year-old house built out of newspapers.

A steampunk wonderland that preserves America's history of industrial innovation.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

An enormous, inside-out glass globe built in 1935.