Saudi Arabia is the largest country in the Arabian Peninsula and has many interesting locales, cities and neighbourhoods to visit. Here's a list which features the best.

• Riyadh : The capital city of Saudi Arabia is also the largest among the lot. It is an exemplary modern metropolis featuring the tallest of skyscrapers, most modern malls and top notch architecture. Hidden under the modern facade, this city also has historical sites like the Al-Masmak Palace and Masmak Fortress.
• Jeddah: Jeddah sits along the coast of the Red Sea and it is also the gateway to the holy city of Mecca. The unique Al-Badad is located in this city and it is listed as a UNESCO World Heritage Site for its unique coral architecture.
• Mecca: The spiritual epicentre of the Islamic Religion, Mecca is one of the most visited pilgrimage sites all over the world. If you are not a Muslim you will not be permitted to enter the city but you can admire its beauty and bathe in its holy aura from afar.
• Medina: Medina is the second most holy city of Islam as it houses the Prophet’s Mosque. This is also a popular pilgrimage site and has the same rules for tourists.
• Al-Ula: Situated in the northwestern region, Al-Ula is an archaeological wonder. The ancient Nabatean city of Madain Saleh which is a UNESCO World Heritage Site as well.
• Abha: Located in the Asir region, Abha stands out from every other destination in the country due to its mountainous terrain, cooler climate and lush greenery. The Habala Village, known for its unique hanging houses, is also situated here.
• Dammam and Khobar: Located on the eastern coast along the Arabian Gulf these provinces are a coastal paradise where you can enjoy clean relaxing beaches and enjoy fresh seafood.
• Taif: Home to the Shubra Palace which offers stunning panoramic views of the city down below, Taif also has hilly terrain and is a great place to escape the heat.
• Najran: The Al-Ukhdood archeological site is nestled in the city of Najran which makes it a great place for history buffs to visit. It is also famous for its unique mud and brick architecture and ancient forts around the city.