A 125-meter long "tribute to the Brazilian people."

Balanced on four stone pillars, this historic tower was the site of a tragic political assassination.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

A sacred lake with thousands of sacred carp and a biblical history.

One of the oldest monasteries in the world is a key pilgrimage site for both Muslims and Christians.

The rocks around this mountain are filled with so many carvings that the area became known as the "open library."

A 19th-century fortress and collection of artifacts offer a tour of Saudi history.

An archaeological site believed to be the burial place of the "mother of us all."

These towering cliffs jut dramatically from the middle of a barren desert.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

This bazaar is one of the oldest in the Arabian world.

This beautifully restored fortification kept the city safe for centuries.

Modern museum, designed for Jihadi tourists.

This modernist cinema has survived war and reconstruction to become a symbol of Lebanon’s revolutionary spirit.

The largest hewn stone in history.

The largest covered bazaar in the world.

One of the holiest Shi'i shrines in Iran honors the life and death of a learned noblewoman who became a saint.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

Marked by the hand of the explorer Henry Morton Stanley.

This circular Iranian jail was once a political prison run by the country's secret police.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

The colorful soil of Iran’s "Rainbow Island" attracts artists and nature lovers.