Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The largest and most famous wax anatomical collection anywhere in the world.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The tallest stationary dunes on Earth also happen to sing.

This lab's maddening silence is good for business but bad for sanity.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

A stairway to heaven, or to nowhere at all.

One of the greatest maze designer’s greatest mazes.

Masterful ceramic fountain and map of the Pacific Basin.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

The miraculous hydrant that saved the Mission District in 1906.

Happen to come across a dead eagle? Send it to America's official dead eagle warehouse.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.