Peeing dogs guard the Roman hunting goddess atop a fountain at France’s Château de Fontainebleau.

An unusual sand beach in the middle of a forest.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

San Francisco's newly reopened hands-on science museum.

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

A huge musical instrument played by the ocean.

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

This print shop boasts one of the largest pinball arcades in San Francisco.

Walk down an otherwise nondescript alley near Washington Square West in South Philly and find yourself in a vivid, immersive mosaic wonderland.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Yo, Adrian!

Huge masonic hall in Philadelphia with lavishly themed rooms.

The first American department store, and home to the largest operating musical instrument in the world.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A rare view of a preserved Victorian science museum.

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

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

This beloved marketplace mascot poops money and grants good luck.