This bullring in Lima is the oldest in the Americas and the second-oldest in the world.

This stone complex marks the urban center of a lost civilization.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

In the upscale neighborhood of Miraflores in Lima, a pretty little park is home to dozens of cats.

The oldest housing complex in Riga is a mini timeline of architectural trends.

A black cat protests the City Guild in Riga's Old Town.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A modern reimagining of a medieval city gate.

A statue of the second-tallest Dutchman in history.

From afar it looks like someone's hat blew into the water, but closer inspection reveals a giant floating sculpture.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

This enigmatic artifact remained buried in a churchyard for years.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This unusual elevator doesn’t stop or slow down.

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

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

This bronze statue of Martin Luther King was placed in the park without permission.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

This concept building is the UK's first attempt at making a permanent structure of nothing but trash.