A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

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.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

This private residence was the template for one of the most beloved television homes of all time.

Golden Gate Park's historic collection of plants.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

A former major munitions plant that has been converted into a sprawling art space.

This pun was simply waiting to come to life, and one defense contractor made it so.

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

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.