A square-domed symbol of resilience in the heart of the old Jewish Ghetto.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

This is the oldest Roman-made bridge in the city still existing in its original state.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The Lincoln Memorial has inspired many, even though a word on the inscription appears to be spelled incorrectly.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This elaborate towering structure was once famed for its revolutionary height.

A marvel of Byzantine engineering under the streets of Istanbul.

Admire endangered plants in a verdant garden that looks straight out of a Monet painting.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Meet the oldest inhabitants of this Italian hamlet, a series of oddly preserved mummies.

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

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

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

The remains of a hospital that housed over 200 leprosy patients.

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.