Note: Travellers can choose, change or amend their visiting places within London and within the tour-time booked. They can increase or decrease the tour time. Discover the essence of London with an exclusive private tour, available as a half-day or full-day experience. Your journey begins with a convenient pickup from your Central London hotel in a luxurious private vehicle, accompanied by a knowledgeable and engaging guide. Throughout the tour, you'll visit some of London's most iconic landmarks, including St. Paul’s Cathedral, Westminster Abbey, the Tower of London, and the historic City of London.

London Eye is the world's tallest cantilevered observation wheel, and the most popular paid tourist attraction in the United Kingdom with over three million visitors annually. It has been featured numerous times in popular culture. The structure is 135 metres (443 ft) tall and the wheel has a diameter of 120 metres (394 ft). When it opened to the public in 2000 it was the world's tallest Ferris wheel, until the 160-metre (525 ft) Star of Nanchang in China surpassed it in 2006. Unlike taller wheels, the Eye is cantilevered and supported solely by an A-frame on one side. The Eye was the highest public viewing point in London until 2013, when it was surpassed by the 245-metre (804 ft) View from The Shard observation deck. The opening time is from 10 AM to 8:30 PM in the summer and 11 AM to 6 PM in the winter. There are different types of fees for entry ticket and the visitors need to pay separately for those. Source: https://en.wikipedia.org/wiki/London_Eye

The Tower of London, officially His Majesty's Royal Palace and Fortress of the Tower of London, is a historic citadel and castle on the north bank of the River Thames in central London, England. It was founded toward the end of 1066 as part of the Norman Conquest. The White Tower, which gives the entire castle its name, was built by William the Conqueror in 1078 and was initially a resented symbol of oppression, inflicted upon London by the new Norman ruling class. The castle was also used as a prison from 1100 (Ranulf Flambard, Bishop of Durham) until 1952 (the Kray twins),[3] although that was not its primary purpose. A grand palace early in its history, it served as a royal residence. As a whole, the Tower is a complex of several buildings set within two concentric rings of defensive walls and a moat. The opening time is from 9:00 am to 5:30 pm daily. Source: https://en.wikipedia.org/wiki/Tower_of_London

Tower Bridge is a Grade I listed combined bascule, suspension, and, until 1960, cantilever bridge in London, built between 1886 and 1894, designed by Horace Jones and engineered by John Wolfe Barry with the help of Henry Marc Brunel. It crosses the River Thames close to the Tower of London and is one of five London bridges owned and maintained by the City Bridge Foundation, a charitable trust founded in 1282. The main towers "consist of a skeleton of steelwork, covered with a facing of granite and Portland stone, backed with brickwork on the inside faces." An octagonal steel column stands at each corner of each tower (119 feet 6 inches long). Tower Bridge has become a recognisable London landmark. It is sometimes confused with London Bridge, about 0.5 miles (800 m) upstream, which has led to a persistent urban legend about an American purchasing the wrong bridge. opening time: daily 09:30 - 18:00. Last entry is 17:00. Source: https://en.wikipedia.org/wiki/Tower_Bridge

Buckingham Palace is a royal residence in London, and the administrative headquarters of the monarch of the United Kingdom. Located in the City of Westminster, the palace is often at the centre of state occasions and royal hospitality. It has been a focal point for the British people at times of national rejoicing and mourning. The palace has 775 rooms, and the garden is the largest private garden in London. The state rooms, used for official and state entertaining, are open to the public each year for most of August and September and on some days in winter and spring. The opening time: July 10 to August 31: 9:30 a.m. to 7:30p.m.September 1 to September 28: 9:30 a.m. to 6:30 p.m. Anyone can view any time from a certain distance. During this visit, visitors can visit Westminster Abbey and Big Ben as these are very close to the Buckingham Palace. Source: https://en.wikipedia.org/wiki/Buckingham_Palace