A giant portrait of an ancient king looms over the river.

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.

Step inside Lucy, the world's largest "elephant."

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

A Roman monument to their own civil engineering prowess.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

The most disputed archipelago in the world.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

One kilometer of thick brass rod laid out before your eyes.

The clock that sets them all.

An extensive collection of ancient Egyptian artifacts and mummies.

China's biggest e-waste village.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

The remains of what was, not so long ago, the world's largest city.

Jule Körner's house full of bizarre architectural details.

An ancient Egyptian temple in the middle of Madrid, Spain.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

The spectacular collection of one of the world's best woodcarvers.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

A giant robo-cockroach building devours Tokyo.

Berlin's old airport.

A 20-meter (65-foot) robot towers over Tokyo Bay.