Groups of prehistoric tombs that dot the mountains of northern Oman.

An imposing Omani fortress surrounded by date palm trees.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

Gargoyle head that brings good luck.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Structure built from the skulls of vanquished foes.

For nearly 2,000 years this church has been waging war on local snakes by importing cats.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

A series of tiny artificial islands rich with produce bob atop the surface of the lake.

The luxurious circular mansion built for a Communist leader now lies abandoned.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

A geological oddity topped with a 2,000-year-old pagan temple.

The stunning interior of this Gothic church is covered in ornate gold details.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Steadily reminding Czechia of its past.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.