The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

Yo, Adrian!

A rare view of a preserved Victorian science museum.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A bit of retro transportation flair preserved in the world's largest department store.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

This collection of ferns from across the globe is the largest assortment in the United States.

Archaeological sites and great food inside the island's largest mangrove forest.

This "sausage route" features gorgeous views and family-owned restaurants.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

This beachside town is home to a diverse nature reserve, multiple cays, and one of the three bioluminescent bays in Puerto Rico.

Drift through underground caves on a tube.

A natural swimming pool in the middle of the Carite Forest.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.

The short hike is worth the stunning views and crystal blue waters of a secluded beach.

Enjoy the waters of this half-moon-shaped natural pool surrounded by breathtaking scenery.

This colorful gate stands as an entrance to the walled city of Old San Juan.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

Dine like an American revolutionary at Colonial Williamsburg.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

Proceeds from this colorful teahouse in a historic Atlanta neighborhood directly fund women’s education in northeast India.