An eerie collection of the surviving structures from a past celebration of the future.

The large collection of pre-Columbian pottery might make you blush.

Frank Lloyd Wright died a year before construction on his largest public project even began.

Football field-sized microalgae production tanks on the Hawaiian coast create a stunning view from space.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

The forgotten tomb of the Peruvian rubber baron who was the inspiration for Werner Herzog's epic film "Fitzcarraldo."

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

A sculpture of a salmon swimming through a brick building.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

Submerged lava formations create incredible waterworks.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This quirky piece of naval artillery has been deafening Canadians for over a century.

A contemporary fresco movement illustrates the region's rich history.

Scattered throughout London are ancient remnants of the city's former bounding wall.

New York City's first Modernist house.

This historic hotel invented the chocolate brownie.

A giant open-air sculpture made of over 200 full-sized boats.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.