Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The unbelievably opulent home built for an infamous newspaperman.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

This ancient theater was once the home of fierce gladiatorial battles.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A sculptural commentary on capitalism pokes up from the East River.

A community of collapsing homes more than a mile out from the Florida coast.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Carved fountains poignantly placed in parks and in front of special monuments.

Fantastic views and thousands of love locks.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The famous winding walk at Chartres is surrounded in mystery and myth.

A Gothic cathedral created from volcanic rocks.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

It is against the law to obstruct the view from the top of this English burial mound.