One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This 1,300-year-old marker is one of the finest and most complete early Christian crosses in Scotland.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The celebrated eyesore created by starry-eyed sweethearts.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.

This 19th-century former train station’s unusual roof shape earned it a rather witchy name.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

The city is full of whimsical portals to another world.

An ever-evolving wall of graffiti art off East Liberty Street.

Everyone's invited to put on a miniature concert with this world-class musical wonder.

Trade in that pesky human soul for cold-hard circuits.