Rashtrapati Bhavan, home to the President of the world's largest democracy, is emblematic of Indian democracy and its secular, plural and inclusive traditions. It was designed by Sir Edwin Lutyens and Herbert Baker and stands on a 330 acre estate. It took seventeen years to build this presidental place which was completed in the years 1929. Almost seven hundred million bricks and three million cubic feet of stone were used in building this architectural marvel that has 2.5 kilometers of corridors and 190 acres of garden area. The main building covers an area of 5 acres and has 340 rooms spread over four floors. The famous Mughal Gardens of the Rashtrapati Bhavan cover of 15 acres and have 159 celebrated varities of roses, 60 verities of bougainvillea and many other verities of flowers. The Estate also has a state-of-the-art Rashtrapati Bhavan Museum Complex (RBMC) comprising the Clock Tower, the Stables and Garages showcasing past as well as current presidencies, the regal ceremonies, and the rich flora and fauna of Rashtrapati Bhavan, amongst other. Address: Gates 30 & 35, President's Estate, New Delhi, Delhi 110004

The beautiful Red Fort was built by Shah Jahan in 1648 and served as the seat of Mughal power until 1857. This stunning structure, with its tall, red sandstone walls covers an area of more than two square kilometers, the entirety of which is crescent shaped and surrounded by a moat. The impressive main entrance, the Lahore Gate, is so named as it faces towards Lahore in Pakistan, while the even grander Delhi Gate was used by the emperor for ceremonial processions. Address: Netaji Subhash Marg, Chandni Chowk, New Delhi, Delhi 110006

Impleted in the 12th century, the beautiful Qutub Minar-India's tallest minaret and now a UNESCO Word Heritage Site-attracts many international visitors eager to climb to the top for its breathtaking views of the surrounding area. This ornate five-story tower rises more than 70 meters and is covered with intricate carvings featuring the history of Qutub along with inscriptions from the Koran. It's also notable for being constructed of a number of different types of stone (the first three stories are made of red sandstone, while the fourth and fifth stories were built with marble and sandstone). Address: Mehrauli, New Delhi, Delhi 110030

The magnificent Bahá'í House of Worship, also known as the Lotus Temple due to its nine sides and stunning central dome, is an architectural masterpiece. Constructed of white concrete and marble, the entire structure looks as delicate as the flower it resembles. Rising from the surrounding nine pools of water, it almost appears as if it might burst into bloom at any moment. Built in 1986, the temple has since attracted more than 70 million visitors, making it one of the world's most visited attractions (interestingly, this remarkable place of worship has no idols, religious pictures, or outward symbols of religion). Address: Lotus Temple Road, Shambhu Dayal Bagh, Bahapur, New Delhi, Delhi 110019

Near Connaught Place, one of New Delhi's largest and best-known business districts, Jantar Mantar is one of five astronomical observatories constructed by Maharajah Jai Singh I in 1725. Designed to enable occupants to observe the movements of the sun, moon, and planets, this well-preserved historic site also boasts several other old instruments on display that were once used to track the course of heavenly bodies and predict eclipses. Highlights of this remarkable and architecturally pleasing building include an enormous sundial known as the Prince of Dials. Address: Sansad Marg, Connaught Place, New Delhi, Delhi 110001

The Jama Masjid is one of India's largest mosques and was the final architectural feat of Shah Jahan. Completed in 1658, this beautiful structure features three gateways, four angled towers, and two 40-meter-high minarets built using red sandstone and white marble and attractively alternated in vertical stripes. Visitors can climb to the top of the southern minaret for spectacular views of Old Delhi, and afterwards visit the large central pool used for washing before prayers (visitors must take off their shoes and be appropriately dressed before entering; non-Muslims aren't permitted during prayers). Address: Chandni Chowk, New Delhi, Delhi

Looking a little like the famous Arc de Triomphe in Paris, the equally impressive India Gate is a magnificent stone arch built as a memorial to Indian soldiers killed in WWI. An eternal flame burns beneath the massive structure, and its walls are inscribed with the names of more than 90,000 soldiers who died in the conflict. Standing on a base of red stone and featuring a shallow domed bowl on top that is occasionally filled with burning oil (usually only on important anniversaries), the structure dominates the parkland around it, an always busy area with crowds of tourists and locals alike enjoying a picnic or simply relaxing. Address: Rajpath, India Gate, New Delhi, Delhi 110001

Set in a lovely, large square garden, Humayun's Tomb is a lofty mausoleum constructed of white marble and red sandstone. It was designed as a prototype of the Taj Mahal in Agra and is an excellent example of Mughal architecture. Built in the mid-16th century by Haji Begum as a memorial to her husband by Humayun's senior widow, the tomb is surrounded by lush formal gardens and other tombs including Humayun's barber and the Tomb of Isa Khan (the architect of the Taj Mahal), a fine example of Lodi architecture and octagonal in shape. A fun thing to do is to try and catch a glimpse of this spectacular structure after nightfall when it's illuminated. Address: Mathura Road, Nizamuddin, New Delhi, Delhi 110001

Although only recently completed (it opened in 2007), the splendid Hindu Akshardham temple looks like it could be centuries old. Festooned with intricate and elaborate carvings, this magnificent building attracts countless visitors for its majestic beauty. Highlights include the stunning 43-meter-high main monument with its rich carvings of animals, plants, gods, dancers, and musicians, all made from pink sandstone and marble. Of particular note are the 234 ornate pillars supporting its nine domes, as well as a stunning stone tribute to elephants, the centerpiece of which is a massive 3,000-ton statue of one of these beasts. Address: Noida Mor, New Delhi, Delhi 110092

Delhi's most important Sikh place of worship, the 18th-century Gurdwara Bangla Sahib is near Connaught Place and is well worth a visit. Highlights include its magnificent pool, the Sarovar, at the heart of this large complex, as well as its famous gold dome and flagpole. Also of note is the large temple building itself, along with its art gallery and a small museum dedicated to the history of the Sikh religion. Visitors are always welcome here, and an excellent meal is available at no cost in the large Gurdwara Kitchen-all that is asked in return is your hair be covered and shoes removed (free headscarves and shoe storage are provided). Address: Ashoka Road, Connaught Place, New Delhi, Delhi 110001