This once-derelict building is now one of the most beautiful bookstores in the world.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

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

The magic's in the hole!

Portlandia is the second-largest copper repoussé statue in the United States.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Home to the only outdoor municipal elevator in the United States.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A fountain standing as a testament to a doomed alliance.

A marvel of Byzantine engineering under the streets of Istanbul.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

1513 Turkish world map, full of European state secrets and snarky commentary.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

When you've got to go, you've got to go.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

This attraction was abandoned after the Chornobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.