17,400 lbs., 12 feet in diameter, and 29 years in the making.

Home of the "true" equator.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

Massive volcano in the Andes is the farthest point from earth's center.

One of the tallest mountains in India was closed for years after a botched CIA mission.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

Supposedly Satanic numbers adorn this preserved submarine sail.

These giant metal horses graze on a hilltop near the Montana highway.

A fitting attraction for the corn capital of the world.

A popular rock that acted as a waymarker for American pioneers.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Memorial to the father of the Republic of China.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

Home to the deepest rift anywhere on Earth.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

The highest point in Wisconsin is capped by two towers that are not as mythic as Tolkien's but provide much better views.

The highest point in Iowa, while not that impressive to mountain states, has earned its own monuments.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's second-largest sundial, made entirely out of stone.

Sacred Indian temple that’s all monkey business.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The most famous location in China was home to whole dynasties worth of imperial rulers.