No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The 10,000 Torii shrine.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

America's only nuclear missile silo open to the public.

Limestone caves with spectacular showcase chambers.

A reproduction of earth's many biomes.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

There are eight natural springs around town, each with a slightly different taste.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

This sandstone mansion was the home of two of Oregon's most important pioneers.

The magic's in the hole!

A massive sea stack famous for its appearance in The Goonies.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The highest point in Washington state is a volcano covered in glaciers.

A wall of chewing gum moonlights as collective art.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

Breathtaking and huge 430 year old maps of Italy.

Beautiful views and Roman-style statues on the Italian coast.

Pompeii's less famous neighbor is still revealing her secrets.

Ancient snack bar of the Roman Empire re-opened.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.