Jagganath Puri Temple India
The world's largest cave temple is the Kailasa Temple in Ellora, India. It is an impressive multi-story rock-cut temple dedicated to Lord Shiva, and it is considered one of the most remarkable cave temples in the world due to its size and architectural beauty.
srirangam vishnu temple ,tamilnadu..................
Aksharadham is not the biggest hindu temple because the followers of their deity are not hindus. The biggest hindu temple is probably the Brihadeeshwara Temple in Thanjavvur, Tamilnadu.
Temple of Venus.
The dwarka temple i think
Dedicated to Lord Ranganatha (a reclining form of Lord Vishnu), the Sri Ranganathaswamy Temple in Srirangam located in the Indian city of Tiruchirapalli. With an area of 156 acres (6,31,000 m²) and seven concentric walls, the outermost being about 2.5 miles (4 kilometers) long, the Sri Ranganathaswamy Temple is one of the largest temples in the world. In fact, the temple is the largest functioning Hindu temple complex in the world. The oldest structure of the temple dates back to the 10th century. There are 21 Gopurams (tower), among which the Rajagopuram is the biggest temple in South India. It is 73 meters (240 feet) in height (having 15 stories ), and dates from the 17th century, although it was only completed in 1987.It is an important shrine that receives millions of visitors and pilgrims every year.
I suppose the Dwarka Temple.
horyu-ji temple complex begun in 607 in asuka, japan
Nellaiappar Temple, Tirunelveli.
The largest religious monument in the world is Angkor Wat in Cambodia, which is a Hindu temple complex originally built in the 12th century.
It is the largest and the biggest ancient temple as monument of Buddha and was preserved as world heritage , protected by UNESCO.