One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

This 13th century Orthodox monastery is built right into the Moldovan cliffside.

Mexico's largest collection of masks is found in the ruins of an abandoned convent.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

A memorial to the murdered Jews of Kaunas.

In one of the world's smallest countries, a royal's personal winery is open to the public.

This former Nazi labor camp is now a poignant memorial, complete with giant Soviet-style monuments.

Deep in the Negev Desert, the world's tallest solar tower looks like a sight straight out of science fiction.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

Locals say the water level in this 1,200-year-old tank never goes down.

Outlaws, hot springs, and tragedy have all left their mark on this ancient road in the Icelandic highlands.

The home of a deceased Hungarian artist is now on display for visitors.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

This orchid sanctuary protects countless varieties of the flower, from the huge to the microscopic.

This former mill comes to life during the Christmas season.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

Designed to mark the geographical center of France.

Every summer, an open-air swimming pool appears at the base of a Finnish city's beloved winter attraction.

This atmospheric spot in Pärnu's historic old town is located in a 17th-century almshouse.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

Iron Age "bog person" preserved for over 2,300 years.

An enormous and lavish Gothic church in Czechia.