This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A subterranean house of worship carved right out of the bedrock.

The Guardian of Tallinn.

Copenhagen's celebrated theme park and gardens.

Where the lovelorn find a home for their sentimental keepsakes.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

A striking symbol of the Bulgarian capital.

A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

Singapore's landscaping project is home to 18 incredible Supertrees.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

The embalmed remains of the communist leader lie within a custom crystal coffin.

The once highest point in China blends symbolic design with a kick of adrenaline.

Ming Dynasty necropolis raided during the Cultural Revolution.

This psychedelic tourist trap is a leisurely descent into madness.

The most famous location in China was home to whole dynasties worth of imperial rulers.

These bronze sculptures sow whimsy by hamming it up on a pedestrian mall.