This historic graveyard was partially paved over to create a streetcar line.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

Dozens of rockets and missiles are on display outside a testing facility in the Utah desert.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

The celebrated eyesore created by starry-eyed sweethearts.

This bridge was constructed from the rubble of the infamous Bastille.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

A hidden three-foot-wide house separates these two regal churches.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Elaborate tile work in this railway station tells the story of Portugal.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

As one of the world's largest hydroelectric dams this plant took two countries to get built.