The celebrated eyesore created by starry-eyed sweethearts.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Elevated freight railway turned wildly successful urban park.

Macabre astrological automaton clock dating to the late 1400s.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

A bright little alley in La Boca is a part of tango history.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

Trash-filled shrines to an unofficial saint known for her endless breast milk dot the highways of Argentina.

Mineral springs believed to hold therapeutic properties draw in visitors from all over.

Spanish religion mixed with local architecture has yielded a network of churches unlike any other.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.