Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

A daily replay of the experiment that proved the rotation of the Earth.

This elaborate towering structure was once famed for its revolutionary height.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

When waves crash onto this section of beach, the rocks sing a song.

This strangely specific landmark will let travelers know when they are half way there.

The world's largest and most outstanding marl lake regularly changes color.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

The gravestone of a famous poet features a fittingly poetic epitaph chosen by the writer himself.

This simple apartment may have inspired some of the most important theories in the history of science.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

Large Hadron Collider and the Birthplace of World Wide Web.

The summer tourists on these cliffs are thousands of seabirds.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

A winding, blood-red tunnel of hardened lava navigable by foot.

Climb right into the heart of this colorful Iceland volcano.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

The personal charnel house of Anton Bruckner.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.