These days it's easier to find the bakery chain Cinnabon in Mecca than the house where the Prophet Mohammed was born.
The ancient sites in Islam's holiest city are under attack from both money and extreme religion. Developers are building giant glass and marble towers that loom over the revered Kaaba, which millions of Muslims face for their daily prayers. At the same time, religious zealots continue to work, as they have for decades, to destroy landmarks that they say encourage the worship of idols instead of God.
As a result, some complain that the kingdom's Islamic austerity and oil-stoked capitalism are robbing this city of its history.
"To me, Mecca is not a city. It is a sanctuary. It is a place of diversity and tolerance ... Unfortunately it isn't anymore," said Sami Angawi, a Saudi architect who has devoted his life to preserving what remains of the area's history. "Every day you come and see the buildings becoming bigger and bigger and higher and higher."
Abraj al-Bait is a complex of seven towers, some of them still under construction, rising only yards from the Kaaba, the cube-like black shrine at the center of Muslim worship in Mecca.
"Be a neighbor to the Prophet," promises an Arabic-language newspaper ad for apartments there.
The towers are the biggest of the giant construction projects that have gone up in recent years, as the number of Muslims attending the hajj, the annual pilgrimage to Mecca, swelled to nearly 4 million last year. Saudi Arabia is trying to better serve the growing upscale end of the pilgrimage crowd, while investors -- including members of the Saudi royal family -- realize the huge profits to be made.
Saudi Arabia boasts that Abraj al-Bait -- Arabic for "Towers of the House," referring to the Kaaba's nickname, "the house of God" -- will be the largest building in the world in terms of floor space. Developers have said the completed building will total 15.6 million square feet (1.45 million square meters) -- more than twice the floor space of the Pentagon, the largest in the US.
Three of the towers, each nearly 30 stories, are already completed, and the others are rapidly going up. A mall at their base has already opened, where customers -- many of them in the simple white robes of pilgrims -- shop at international chains such as the Body Shop and eat at fast-food restaurants. Other complexes nearby include upscale hotels.
The building boom is in some cases destroying Mecca's historic heritage, not just overshadowing it. In 2002, Saudi authorities tore down a 200-year-old fort built by the city's then-rulers, the Ottomans, on a hill overlooking the Kaaba to build a multimillion-dollar housing complex for pilgrims.
The holy sites have also been targeted for decades by the clerics who give Saudi Arabia's leadership religious legitimacy. In their puritanical Wahhabi view, worship at historic sites connected to mere mortals -- such as Mohammed or his contemporaries -- can easily become a form of idolatry. (Worship at the Kabaa, which is ordered in the Koran, is an exception.)
"Obviously, this is an exaggerated interpretation. But unfortunately, it is favored among officials," said Anwar Eshky, a Saudi analyst and head of a Jiddah-based research center.
The house where Mohammed is believed to have been born in 570 now lies under a rundown building overshadowed by a giant royal palace and hotel towers. The then king, Abdul-Aziz, ordered a library built on top of the site 70 years ago as a compromise after Wahhabi clerics called for it to be torn down.