The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

One of the first Second Empire-style buildings constructed in North America.

A modernist landscape of water and sci-fi concrete.

A blast of nostalgia awaits visitors to this miniature indoor raceway.

The colonial city's social history is reflected in its fanciful door knockers.

Perched atop the highest hill in Cartagena, this 17th-century convent offers spectacular views of the city.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Running since 1864, this clock has yet to be wound, one of the longest-running science experiments known.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This National Natural Landmark is one of the best examples of a “mass wasting” in the world.

The potters' quarter is packed with artists sculpting clay gods with mud from the sacred Ganges river.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

Rare recess caves fill this unbelievably beautiful Ohio park.

This tiny little island has, as the name says, just enough room for its single house.