After the musical legend's death, his memorial was mysteriously graffitied in gold.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

A public urinal so pretty, it was declared a national monument.

Amsterdam's former hotspot for public executions and dissections.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Europe's official "zero-level," the equator of elevation.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Sail in for a ’dam good slice.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

After being lost for decades, this striking mural depicting the atomic bomb covers the wall of a busy Tokyo metro station.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

Once a black market electronics marketplace, now an otaku shopper's paradise.

This sidewalk tribute honors Colorado's great culinary creation.

The commemorative stone column conceals a secret laboratory.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

One of 100 “Whaling Wall" murals painted in 13 different countries by a renowned marine life artist.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.