The largest ancient burial mound in Ohio.

Huge abstract sculptures of the Puerto Rican Flag.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Low-frequency noise compared to an idling train can only be heard by some of this industrial town's residents.

The world's largest fully steerable radio telescope.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Abandoned silver mine strewn with wrecked and twisted structures.

Deep scars on the earth left by the Ice Age.

An office built to look like a giant basket.

A building so large that it has its own weather.

Electrical pylon in the shape of Disney's beloved mouse.

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

The world's oldest known salt mine.

The most visited, and possibly most controversial, museum in Germany.

Go inside to really appreciate this 500-year-old technological masterpiece.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The fairy tale castle of the "fairy-tale king."

A fitting attraction for the corn capital of the world.

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

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A museum documents the development of the invention that tamed the Wild West.