Marble Palace is a stunning 19th-century mansion located at 46, Muktaram Babu Street in North Kolkata. Built in 1835 by Raja Rajendra Mullick, a wealthy Bengali merchant and art connoisseur, it is renowned for its neoclassical architecture with traditional Bengali elements. The palace features open courtyards, tall Corinthian pillars, and beautifully ornamented verandahs, reflecting a blend of styles, including a resemblance to a Chinese pavilion. It is constructed using 126 types of marble, which gives it its name. The mansion includes five halls: the Painting Room, Reception Hall, Thakur Dalan (place of worship), Sculpture Room, and the Billiards Room.

Belur Math is a revered spiritual retreat located on the west bank of the Hooghly River in Kolkata, West Bengal. It serves as the headquarters of the Ramakrishna Math and Mission, founded by Swami Vivekananda, a chief disciple of Ramakrishna Paramahamsa. Established in 1898, Belur Math is a testament to the spiritual renaissance of the late 19th century in India. The complex is renowned for its stunning architecture, which blends elements of Hindu, Christian, Islamic, and Buddhist styles, symbolizing the unity of all religions. This architectural blend reflects Swami Vivekananda's vision of universal brotherhood and harmony.

Dakshineswar Kali Temple is a prominent Hindu temple located on the eastern banks of the Hooghly River in Kolkata, West Bengal. It was built in 1855 by Rani Rashmoni, a philanthropist and devotee of Goddess Kali, after she received a divine vision instructing her to construct the temple. The temple complex is renowned for its traditional Bengali architecture, featuring a nine-spired main temple dedicated to Kali, known as Bhavatarini, and twelve smaller temples dedicated to Lord Shiva. The temple gained spiritual significance due to its association with Ramakrishna Paramahansa, who served as its chief priest for over three decades.

Howrah Bridge, officially known as Rabindra Setu, is a steel-balanced cantilever bridge spanning the Hooghly River in West Bengal, India. It was commissioned in 1943 and replaced an earlier pontoon bridge that connected Kolkata and Howrah. The bridge is an iconic landmark and engineering marvel, designed by Rendel, Palmer and Tritton. It was constructed using 26,500 tons of steel, with 23,000 tons supplied by Tata Steel. The bridge is notable for being built without nuts and bolts, using rivets instead.

The Victoria Memorial is a majestic monument located in the heart of Kolkata, built between 1906 and 1921 by the British Raj. It was dedicated to Queen Victoria, who served as the Empress of India from 1876 to 1901. The idea for the memorial was conceived by Lord Curzon, the Viceroy of India, as a tribute to Queen Victoria's reign. The foundation stone was laid by the Prince of Wales (later King George V) in 1906. The memorial is a blend of classical and Neoclassical architectural styles, featuring Indo-Saracenic elements. It stands on 64 acres of gardens and houses a museum with 25 galleries showcasing Indian history during the British Raj.