A monument celebrating the idea of reaching inaccessible places.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Bouncing, delightful, mechanical art at the MIT Museum.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

At 207 feet, one of the world's longest continuous escalators.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

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

The highest bridge in America was built for an almost unnervingly small amount of money.

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

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

The unbelievably opulent home built for an infamous newspaperman.