This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

A winding, blood-red tunnel of hardened lava navigable by foot.

A lion given to the prime minister somehow got stuffed and sent to Florida.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

World-famous, Pink's still manages to keep its prized cult fetish status.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Impossibly life-like natural history models created out of glass by a father and son.

Three prestigious academic collections come together to create a world-class natural history museum.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

Bouncing, delightful, mechanical art at the MIT Museum.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Ice cream stand, snack bar, and time capsule of milk conveyance.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

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

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

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

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

A small Richmond island dotted with the remnants of hundreds of years of history.

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

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

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.